Once the concrete cures, the mold can be removed and the product can be palletized and shipped. On the other hand, dry or vibrant cast stone panels. Concrete is a very basic building material that adequately serves a multitude of construction applications. Top posts of April 16,. Dry Cast. Dry tamped cast stone is typically specified to be 6500 psi at 28 days when tested in accordance with ASTM C 1194 (done by breaking cubes) while wet-cast cast stone is typically specified to be 5000 psi at 28 days when tested in accordance with ASTM C39-86 (done by breaking cylinders). The manufacturing process developed to create these natural‐looking masonry products denoted the first step in the evolution of thin veneers. Increased production One benefit of using dry cast is it can be consolidated within a form. As its name would imply, wet cast concrete is quite liquid. Wet Casting vs. The cast-in-place wet joints are located in the middle of precast concrete segmental beams (PCSBs) which could eliminate the errors caused by the assembly of the precast concrete segments. Del Zotto Mixers are capable of. In this blog post, we will give an overview of precast concrete construction and the different methods. They are simply reinforced concrete piles cast in holes drilled to predetermined elevations. In recent decades, precast concrete buildings have undergone significant development, attracting considerable academic attention to their mechanical performances. Wood, plaster, glue, sand, sheet metal, and gelatin are the molding materials that are used to manufacture drawing work and casting molds like delineate. STONE+ MATTE Stone Sealer. It flows evenly over rebar reinforcing bars to make floors or walls in large buildings. 2. Dry tamp replicate a carved stone while wet cast looks like a molded product where details does now show as well as dry cast. cover, mm (in. There are two main types of concrete pavers, wet cast and dry cast. To complete fences, gravel boards are also available, these are 1825mm x 300mm x 50mm size manufactured in both smooth and rockface finishes, and 1825mm x 150mm x 50mm size in smooth finish only. Keywords: Compressive Strength; Dry-Cast Concrete; OPC; PPC; Precast Concrete; Splitting Test; Tensile Strength; Wet-Cast Concrete. Precast Concrete vs. CONSTRUCTION (58) TECHO-BLOC (58) PAVER PETE (51) videos (21) Techo Pro Tips (14) SRW (10). pipe on a radius of 1,500 ft. pipe on a radius of 1,500 ft. A single bag of Sika foam costs about $16, at one bag per post hole. However, it is less than the shotcrete method. rarely become 100% dry without the use of a forced air dryer. Cheaper initially but more expensive overall for large constructions. After the wide part at the bottom of the hole has. Wet Cast and Dry Cast Concrete. an estimated 40 to 42 hours for cast-in-place (see accompanying chart). In some cases, dry-cast products can comply with specified material strength requirements in 24 hours. Hello world! 8. Wet-Cast versus Dry-Cast. The same wet cast paving process is applied to the following simulated stone / concrete products: 1`) Pavers or paving bricks. 3) Bullnose stones or Coping Stones. Hollow-core – detension in 8 to 12 hours. Then the unit weight (density) of the concrete sample = SG sample x 62. comNelson Precast 1501 W Patapsco Ave, Baltimore, MD 21230 (410) 522-7190 (410) 732-3408 [email protected] Description. The semi-dry process is most suited to traditional sized products such as cills, heads, string courses, cornice, copings etc. Wet Cast Paver – Techo Bloc Aberdeen. The installation process varies between wet and dry set concrete methods. Fun and Informative Concrete Technology Videos for Dry Cast Concrete Producers. Cast stone is a type of precast concrete designed to replicate the appearance and texture of natural stone. Precast Light Concrete. (805) 386-8185 Fax: (805) 671-9371 E-Mail (Click Envelope) Glossary of products Description: Cast Stone (click to enlarge) Our "top of the line" product. doi: 10. STONE+ GLOSS Stone Sealer. In these examples, steel ranges from 43% to 53% of the total cost of components. faster mold or machine fill times. Can be made as a one-off or as long runs of standards. Wet joint involves the use of epoxy glue at the mating precast segments. Intermediates & Ends = 100mm x 85mm. In this blog, we will explore the advantages of using wet cast paving over dry cast paving, highlighting its potential to transform your outdoor areas into stunning havens. Cast stone has been used as a building material for centuries, with a history that can be traced back to ancient civilisations. PAGE 4 > Guide to Concrete Construction — Part VI-Section 20 – Precast Concrete Version 1. 3 x sharp sand, 2 x 10mm pebble or chippings and 1 x cement. Like its name implies, wet cast involves significantly more water than dry tamp, and because of that, wet cast exhibits 3 to 4 inches of slump. Also referred to as Dry Cast or Dry Pack. 9. Dry cast uses an expensive machine, but the machine can be used for multiple slabs. Semi-Dry Cast. 4% to the tune of $12. Dry bond is used in which FRP is pre-bonded with a layer of aggregate and the fresh concrete is cast against the bonded aggregate [6]. 7 wet cast, adj—manufactured concrete products made from fresh concrete with a measurable slump in accordanceOur 9ft Concrete Intermediate Fence Post (2. Introduction Indonesia is one of the fast developing countries in the world. Wet cast pavers appear to have a smooth non-porous surface while dry cast pavers visibly look to have a rougher, more porous surface. Setting a cast-in-place anchor in just the right location can be a daunting task. 21. Step Specifications. The development of its compressive strength was also monitored at 1, 7, 14, 21, 28, and 56 days of age. 4 or higher. Both methods manufactured a simulated natural cut stone look. Watch on. If next to a driveway, Steps Plus can make a ornamental iron gate that attaches to the columns to span the driveway. 11. They combine the economy of post-frame. Russell III, executive director of the Cast Stone Institute is that “cast stone isn’t permitted to contain bug holes or air voids and must have a fine-grained texture, which is normally achieved by acid etching. 2. Run a top string: Tie one end of one string around one end post about 6 inches from the top. Used to set mailbox posts, fence posts and lamp posts without mixing; Pour dry mix into hole and soak with water . Wet cast – handle in 6 to 8 hours. In fact, precast concrete has established itself as the preferred approach to concrete construction. No matter if your organization is producing wet cast or dry cast, Standley Batch has the mixers and silos to complement your efforts. Rebar chairs, which position the reinforcing steel away from the face of the mold are not recommended with cast stone. Soil reinforcement can be added to wet cast PMBWs and dry cast MBWs. 2 shows the monolithic connection which is cast in-situ condition. conducted an experimental study on the Scope system introduced from France. On the other hand, dry or vibrant cast stone panels. The. Contrasting that with our semi dry stone process and you can see why Serene Stone semi dry is. Costly initially but cost saving overall in large constructions. Both conform to ASTM C1364 specifications. Dry-cast concrete ≈ roller-compacting concrete. Dry cast concrete fence posts, on the other hand, involve a concrete. Since the embedded rod with rod is only the yielding part of the developed connection. When you purchase steps from us, you can feel confident that we’ll be around to answer your questions or solve any problems, be it tomorrow or five years from now. 4 (4. We have gravel boards available in various sizes and also both Wet Cast or Semi Dry finishes. N = normal force between the surfaces (N, lb) There are at least two types of friction forcesAutomacad offers equipment with a variety of standard configurations customizable to fit your specific Dry Cast project. In jointed systems, the precast structural components are separated and are connected using joint detailing like bolts and welds. walkways, pool decks, and patios). Mix ratio’s needed for garden ornament moulds are also a 3-2-1 mix, but the sand content is higher i. We’ve spent more than 55 years developing and refining our solutions and today provide a level of service that we. 4 lbs. All products available ex works. Dry connections are usually achieved through steel materials and rely on bolting, anchoring, and onsite welding to connect precast concrete members. 1. Give us a call at 717-267-4505 for information on more quality precast, prestressed products to meet your design and construction needs. Epoxy joints can enhance the overall structural integrity of PUSBs by mini-mizing the impact of joint imperfections [29, 30]. Roller-compacted concrete (RCC) and dry-cast concrete (DCC) are two different types of dry concrete mixture with different casting and fabrication methods [5]. Pure dry cast method used to join the beam column connection under pre-tension bolts. 2074 Boston Post Road (860) 399-6201 Westbrook, CT 06498. Installation & Solutions. A ductile hybrid connection consists of unbonded post-tensioning steel and bonded reinforcement bars, both of which provide overall moment resistance to the frame. 2. Wet Curing Concrete and Drying Time. If the size of the opening exceeds the safe limitations of cast in the use of a structural header is used to create the required opening. See full list on delzottoproducts. Use of a bond breaking agent allows the seg-ments to be taken apart. It’s fast. The dry-cast concrete has also been used for its advantages particularly in precast concrete industries, e. Then dump concrete through the tube into the bottom of the hole. [15] for engineering structures with cyclic symmetries. If a railing or fence post is placed on the top of the blocks, the. To find out more, contact us at sales@standleybatch. Most of the bright coloured pavers (Red, yellow and Jet black) you see would be made using wet casting process. concrete units, interlocking soil-filled reinforced concrete modules or bins or rock filled gabion baskets. Admixtures –. Introduction Indonesia is one of the fast developing countries in the world. Both have identical mix designs (Portland cement, aggregate, water, etc) and are cast in forms and cure. There are two main types of concrete pavers, wet cast and dry cast. The moulding of RCC is usually achieved by repeated steel/rubber-tired rolling compaction, and it is generally applied to engineering areas of dams and pavements [[5], [6], [7], [8]]. Wet cast mixes use considerably more water than the semi-dry process and are generally a through mix. Plaster casts and fiberglass casts with conventional padding aren’t waterproof. Westbrook Concrete Block Co. Precast and Prestressed Concrete Piles. Made from high-quality wet cast concrete and reinforced with steel, these concrete posts can withstand harsh weather conditions and long-term use without compromising their structural integrity. 2—Methods of Casting Segments to be erected with wide joints may be cast separately. Jorge explains the difference between the dry cast system and the wet cast system. Dry Cast vs. Gravel boards. It will eventually get wet and cure over time. Post-tensioning steel acts as a restoring force. 1 For both conventional wet cast concrete and SCC mixes, a minimum of one set of compressive strength cylinders shall be fabricated from every 7 yards of concrete, orOur slotted concrete posts are 4" x 3. Give us a call at 717-267-4505 for information on more quality precast, prestressed products to meet your design and construction needs. Top Tread: “No. 16 (No. Moreover, as mentioned earlier, these methods utilize dry-cast concrete with a low water/cementitious materials (w/cm) ratio. Cast Stone is generally used as the veneer or trim component of a conventional masonry cavity wall system, similar to brick veneer. 2. However, avoiding “strong beams and weak columns” during strengthening against progressive collapse is a key problem. AAS CNC technology and experience allows for an extremely high precision mold making process that produces high-quality. Keep your child's cast dry during baths or showers by covering it with two layers of plastic, sealed with a rubber band or duct tape. MANUFACTURE OF PRECAST CONCRETE 2. 1 This specification covers the production of dry cast concrete as defined in 3. 2mm. Step 1: Dig the Hole. The most common finish for a dry tamp cast stone is limestone or sandstone while the wet cast method is capable of providing a wider array of possible finishes. The frictional force can be expressed as. Believe it or not, even in an era of chemicals and additives, proper hydration, i. For a wetThe biggest difference between architectural precast concrete and cast stone according to W. It is important to keep in mind that dry-pour concrete may not offer the same level of strength and durability as wet-mix concrete. Download the PDF version of this article. If your cast gets wet, it will become soft and will not be able to hold your limb in place. Slump is the consistency of concrete before it. 9 Wet Cast – In this Standard it shall be defined as anything other than zero slump. Dry tamp, commonly referred to as cast stone, is, as. Dry connections are usually achieved through steel materials and rely on bolting, anchoring, and onsite welding to. With concrete being the most utilised building material worldwide [7, 8] a high ecologic potential, in regard to resource-efficient design and production through automation, is available. Structural items can be produced so long as the reinforcement requirement does not inhibit compaction. 11, as applicable, in addition to the requirements for ordinary reinforced concrete structural walls or ordinary precast structural walls, as applicable. Slotted Concrete Posts have become the most popular choice for panel fencing. Both wet cast and dry cast pavers are suitable for residential projects (i. 6) certain lines of natural stones products. Wet-cast pavers are known for their traditional bold reds, creamy beiges, deep blues and blacks. Wet cast is an easily flowing form of concrete with a high water to concrete ratio. [6] and Nimse et al. EZ-Tube. Wet Cast Mixer Del Zotto offers a system that is fast, efficient and simple. Do this by nailing the sides of the tube to the center of a tic-tac-toe grid of 2x4s at the top of the hole. 57 (No. It's also more weather resistant than natural stone, and can be cast in numerous colors. This lateral system includes a shear wall, moment-resisting frame, braced frame, etc. If you’re like most of us, you’re probably not familiar with these terms and may be. DRY CAST | Do you want to know everything about landscaping? Read our blog articles to find out trends, tips and tools about the landscape industry. Wet cast concrete is often used in the precast industry, where it is. Dry joints do not require bonding agents, making them ideal for construction in any weather condition and oering a faster construction process [30]. The opening could be plant or field cut in an extruded or dry-cast product. The most common finish for a dry tamp cast stone is limestone or sandstone while the wet cast method is capable of providing a wider array of possible finishes. 2 billion in. •Wet mixes have a standard design slump that can be measured in accordance with ASTM C143. Today, 2500 years later, we still follow the same principles. Acceptance Specifications and Precast Concrete Box Sections. These two materials also provide benefits over the other, but. 4. A quarter is ok. (347. dry cast, Ward said. The process used to create a concrete planter is called a ‘wet cast’. 2 Wet Cast Production 2. Marketing & Sales. A dry-cast mixture has just enough water to initiate cement hydration within the range of 0. 4. Dependant on the situation all cast stone both Wet and Dry Cast can be used. According to the PCI Architectural Precast Concrete. Raw Materials. Precast concrete kerbs shall be laid and bedded on a 50mm thick layer of bedding material, placed on the compacted subbase or other formation layer to suit the designated levels of the finished road. 4M) is a top-quality product, designed to provide a strong and durable support for your fence panels. Dry-cast concrete is very dry (w/c of 0. The potential benefits of precast structures with adaptable joints with respect to both traditional dry-assembled precast frames and cast-in-situ or wet-assembled precast frames are discussed. Landscape Planning & Process. Also, dry cast can only achieve limestone or sandstone texture and cannot create a smooth finish. Sealers will protect concrete from both chemical and physical damage and are very inexpensive. Thi. They combine the economy of post-frame construction with THE DRY CAST PROCESS. 30 to 0. 1016/j. The semi-dry precast concrete industry manufactures large quantities of finished concrete products with high quality surface appearance and excellent durability. Typically wet cast pavers are smooth in appearance and to the touch. Structural Performance of Dry-Cast Rubberized Concrete Pipes with Steel and Synthetic Fibers. Wet cast concrete, as its name suggests, has a wetter, more liquid consistency, or what is referred to as ‘slump’ – the state of concrete before it is cured. Common coating materials applied to precast and poured structures include epoxy, polyurethane, polyurea, polyaspartic, acrylic, and water repellent/stains. Wet joint: Joint that requires not only casting with cement but also concreting and grouting material. An increase in curing time means wet-cast pavers are more labor intensive to produce, resulting in a higher price point. Choose with confidence, and make NCP as your single source for. Set only the two end posts: Dig all the postholes that will form a straight line, but only set the fence posts on the ends by following the steps above. However, conventional dry-connections-like sleeve grouting joints in precast concrete structures lagged at a low construction and management efficiency with poor quality control. They are available in two depths 150mm and 300mm. In precast concrete con-struction, all the components of structures are produced in controlled environment and they are being transported to. mixture has just enough water to initiate cement hydration within the range of. 6 , to provide continuity by inserting two 10-mm-diameter reinforcement bars of length 400 mm projecting from. Precast and prestressed concrete piles can be manufactured in a number of different ways. Currently, there are two types of bond in practice: dry and wet bonds. It’s so difficult, in fact, that post-installed anchors are now becoming the preferred method for attaching wood, steel, and cold-formed steel components to concrete instead of cast-in-place anchors. 445. Usually contains a slump less than 4 inches and used for production of large diameter pipe. C948-81(2023) Standard Test Method for Dry and Wet Bulk Density, Water Absorption, and Apparent Porosity of Thin Sections of Glass-Fiber Reinforced Concrete . 3. The observation of crack and failure behaviour of all concrete specimens were also carried out. Dry-cast concrete is a production system of concrete using very low-water content or no-slump and produced using a press machine or using an external vibrator to compress it. The precast concrete element producer bears responsibility for technical performance, compliance to standards and durability of products. A substitute for Dry Cast is the Wet Case Stone alternative. We dug the holes 30” deep this time too as that was appropriate for our freeze depth. Both wet cast and dry cast pavers are suitable for residential projects (i. Quick Curing: Dry pour concrete cures faster than wet mix, allowing for faster project completion. Division 04 Section “Exterior Stone Cladding” for furnishing stone facings and anchorages. BY W. 0 USES & APPLICATIONS. From there they are put into a kiln to cure, stacked on a pallet, and sent off to distributors to be sold. The Architectural Precast Concrete and Cast Stone products by Steps Plus have numerous advantages over other materials that are sometimes specified for use as building trim. Jorge explains the difference between the dry cast system and the wet cast system. Types of connectionsWe have all seen the day-old trick of dry pouring concrete in a hole method for ease of mixing, where you dig your post hole, filled it with dry bags of concrete, pour water in the hole, and mix it right there in place. Dry cast posts are manufactured using a semi-dry concrete mix which is compacted to give it strength. Both of these methods create a simulated natural cut stone look. Requirements for quality of concrete shall be as hereinafter specified. Step 1: Digging Holes. Cost-effective: Due to its. Corners = 125mm x 125mm. Cast in place wall system is a wall system that is naturally a building structure system, consist of vertical load resisting the power and lateral (seismic and wind) load resistant system. pipe on a radius of 1,500 ft. The carbon uptake rate of dry-cast concrete masonry units is higher than wet-cast for the same reason. Precast prestressed concrete method; In the precast prestressed concrete method, high-strength steel cables, known as tendons, are placed inside the mould before the concrete is poured. Posted February 13, 2019. Perma-column . Architectural Precast Concrete vs. Natural Sealers. Caution. Dry Cast – manufactured from zero slump concrete. Providing you with advanced additions and modifications to. Below, several important. This may make it appear that dry cast is stronger than wet cast; however, the tests are not controlled. 1. • Dry Cast – manufactured from zero slump concrete. In dry cast concrete production the raw materials are fed into a mixer which combines them until the mix is homogenous. Cost Comparison – Cast-in-place vs. Each example produces 1 cubic yard of concrete. Lower strength: Wet cast concrete fence posts have marginally lower strength compared to dry cast posts, albeit still offering excellent durability and longevity. 38 without the use of admixtures. This process requires less water and a shorter curing time than a wet cast process The concrete mixture is poured into a mould and compressed under high pressure The pavers have an optimal water to cement ration,making them incredibly strong There is no slump when the product is demoulded The minimum standards for the. For example, Cai et al. The water-cement ratio used in the mix design is 0. Wet/cast-Precast Concrete Structures - 15 SCOPE: This sub-part provides. Cast-in-place also has a high compressive strength of 4000 psi to 5000 psi. Top 10 Facts about Dry-Cast Concrete. Dry tamp replicate a carved stone while wet cast looks like a molded product where details does now show as well as dry cast. Emulative construction uses connections that are designed and detailed to give the PC structure similar performance as that of an equivalent cast-in situ monolithic RC structure that has been conventionally designed. A wet cast can lead to skin irritation or infection. 3 Fibre Reinforced Cast Stone Production 2. Wet cast product is better when a structural product is needed and where bigger pieces need to span large opening. With cast-in anchors you can generally get them deeper, with more reliable QA, and a more readily verifiable load path to confirm that you have developed steel within the pullout cone. While dry cast have historically been more simple and basic in color and texture, modern manufacturing has made color blends and surface textures more desirable. 4) Flagstones or steppingstones or concrete slaps. Dry fit tests shall be documented and kept in the manufacturing plant. 2 Wet Cast ProductionAmong the precast specimens, the second specimen has more load-carrying capacity and the third specimen has the least load-carrying capacity. For conventional concrete the fineness modulus of the fine aggregate should range from 2. July 2018. Dry cast concrete fence posts, on the other hand, involve a concrete mix with a lower water content. Cast Stone - a refined architectural concrete building unit manufactured to simulate natural cut stone, used in Division 4 masonry applications. The wood column is attached to a U-shaped steel bracket made of ¼-inch steel with ½-inch thru-bolts and ¼-inch lag bolts. Also, dry cast can only achieve limestone or sandstone texture and cannot create a smooth finish. Strength. One is the dry connection precast concrete beam-column joint (PJ) proposed in this study, and the other is the cast-in-situ concrete beam-column joint (CJ) for comparison. With over 20 years of mixer manufacturing expertise, we sell the best wet cast mixing system for the pre-cast industry. Precast concrete is our. Repairs specific to uncured dry cast, packerhead, and semi-dry cast product for slab off areas extending to the reinforcing steel shall commence within 1 h of casting the product by trowel-applying batched concrete from the same mix design, or approved concrete mix into the slab off area. Trusted & TestedNormal human skin has a pH of 5. Cast stone units manufactured from wet cast concrete must have their reinforcement properly located and sufficiently rigid to prevent movement during the pouring process and to maintain the required concrete cover. This paper presents development of an analytical framework and finite element models that can reliably simulate the structural behaviour of a jointed precast concrete frame system with demountable angle or tube beam-column connections, whereas the experimental investigation findings are reported in a companion submission (Aninthaneni. , Inc. That won’t happen with foam because it isn’t water-soluble. The oldest version is referred to as Wet Casting. Riva, Behaviour of a Beam to Column “DRY” Joint for Precast Concrete Elements, The 14th World Conference on Earthquake Engineering October 12-17, 2008, Beijing, China, 2008: In Italy, precast concrete structures are traditionally designed as moment resisting frames with plastic hinges occurring at the column base and beams. Is perfect for tight dimensions that other architectural dressings cannot meet. concrete units, interlocking soil-filled reinforced concrete modules or bins or rock filled gabion baskets. Simpler Machinery is used. Customers often ask the difference between dry or vibrant tamped cast stone and wet cast stone. GLU LAM 10,000 psi precast concrete ESR-4238 ESR-4238 ESR-4238 ESR-4238 ICC-ES certified Perma-Column® precast concrete columns elevate wood out of the ground, ensuring your building’s foundation will never rot. Wet Casting is a labour intensive process which is reflected in the lead times for our bespoke products . (805) 386-8185 Fax: (805) 671-9371 E-Mail (Click Envelope) Glossary of products Description: Cast Stone (click to enlarge) Our "top of the line" product. As a result, cast-in-place concrete. Dry connections are usually achieved through steel materials and rely on bolting, anchoring, and onsite welding to. Often, these two materials are preferable to cast-in-place concrete because of the uniform quality, the speed of production, and the cost savings from mass production. 0. Dry-cast pavers are formed through the vibration and compaction of dry materials and are air-cured, making them quick and affordable to produce, but limited in color and texture options. The details of the two joints are shown in Fig. Put the post in the center of your hole. Wet-cast paver mix contains more water than dry-cast pavers, rendering the mix a similar consistency to concrete. As a type of building stone, cast stone is specified under the masonry division 04 70 20. Nitterhouse Concrete Products, Inc. Wahoo Concrete - Dry Cast vs. The material has a density of around. DRY CAST VS. . 1 part sand. It must meet the requirements of BS1217: 2008 or, better still, the more stringent requirements of the UKCSA Standard. They are typically more expensive than dry cast pavers and increasingly these products are being manufactured factory sealed adding to their cost. Gravity causes the water to drain. An Introduction to Dry-cast Concrete This new concrete variant calls for water to be added after other ingredients are in the mold, compacted and finished. Dry cast concrete pavers may sometimes be used to. ” Engineered Form Panels. 3MPa is applied by stress bars at top, bottom and the sides of the mating precast segments. Dry cast sections: a minimum of one test shall be performed per size of box per day of production, or twenty percent (20%) of one day’s production, rounded up to the nearest whole number, whichever is greater. E. Wet-cast means that the concrete has a water-cement ratio of about 0. [6] 2. The wood post is kept off the ground which prevents rotting and gives the foundation longer life. Typically requires less intense formwork. Plasticizers (also commonly referred to as surfactants) are designed to "wet out" the constituents in concrete and improve the workability or flowability of the concrete, resulting in improved densities and productivity, i. 4 parts stone -that mix is more than strong enough. Like all precast, prestressed concrete products, hollowcore slabs. G. Don’t forget concrete nails (ltem HW28) to attach the treated base board. Precast concrete segmental (PCS) box-girders are widely used in bridge construction, while studies on flexural behaviors of PSC box-girders with dry joints are insufficient. It offers the advantages of a high level of. Curing usually takes 3 weeks, during which time the piece. In this study, ultrahigh-performance concrete (UHPC) was utilized in precast segmental beams to reduce the self-weight, shorten the construction time, and improve the performance and durability of bridges. The HEK Precast coupler is an innovative and versatile solution for fast and easy connection of precast concrete elements. 30 to 0. Currently, the robustness of precast reinforced concrete frames is attracting wide attention. 3 inches or less at the time of concrete placement. used w/cm ratios of 0.