More Views. They are placed over joins in concrete slabs in order to prevent cracking. We stock large quantities of splice bar year round ready for immediate dispatch nationwide. 20 x 400mm Dowel Bar Mild Steel. DBC25/100: 25mm Expansion Dowel Caps: £1.23. Dowel bars are short steel bars that provide a mechanical connection between slabs without restricting horizontal joint movement. The thickness of the pavement determines the size of dowel bars required. Each. Some degree of misalignment can be acceptable as the detrimental effects of misalignment are not likely to occur. 1.52. Guide Specification: Dowel Bar Retrofit (DBR) Publication Date: January 17, 2013 SCOPE Dowel bar retrofit (DBR) consists of installing epoxy-coated, smooth, round dowel bars into existing concrete pavement across transverse joints and/or cracks. Dowel Bar Specifications. Dowel bars can be supplied with either a partial or full coating to your specific requirements. Code Product Name Price Qty; DBC12/100: 12mm Expansion Dowel Caps: £0.84. Grade: IS, ASTM A615 Grade 60, Grade 250: Length: 100 mm to 5000 mm: Diameter (mm) 16 – 50: Diameter (inches) 5/8″ – 2″ Application at Pavement & Construction Works. The dowel deflection, bending moment and shearing were analyzed for dowel bars under the traffic loading, dowel length based on the second inflexion distance was computed and a relationship between dowel length and dowel diameter was established. DBC32/100 : 32mm Expansion Dowel Caps: £1.62. An … For the deformed dowels the contract specifications state, "[Tie] Bars shall be billet or axle steel deformed bars and conform to ASTM A615/A615M or ASTM A966/A966M Grade … Description. Dowel Bar Specification Standard Requirements: Dowel bars supplied by Mar-Mac Wire Company will meet the requirements of ASTM A-615 Grade 60. There are measures in the special provisions to handle misaligned dowel bars. We hold stock of the majority of the dowels we offer or can manufacture dowel pins to a customer drawing or specification. Dowel bar is a terminology used in concrete pavements in general. Dowel Bar Specification: Steel Standard: ASTM A615, ASTM A1678, ASTM A775, 854449, AASSITO M254 : Ends: Chamfering & Plain Through CNC driven Machine Cut. Dowel bars can be supplied with either a partial or full coating to your specific requirements. Epoxy Coated Dowel Bar Specification: Steel Standard: IS, ASTM A615, ASTM A1078, ASTM A775, 854449, AASSITO M254 : Coated Standard: IS, ASTM A775 & A775M: Ends: Chamfering & Plain Through CNC driven Machine Cut: Grade: ASTM A615 Grade 60, Grade 250: Length: 100 mm to 5000 mm: Diameter (mm) 16 – 50: Diameter (inches) 5/8″ – 2″ Application at Pavement & Construction … Mild Steel Dowel Bars. Pack Size. 7-4 Figure 7-3. Dowel bars are placed on the fresh PCC surface then pushed down to the correct elevation by a series forked rods. ACPA Guide Specification | Dowel Bar Alignment and Location November 2018 | Page 4 of 18 Another factor to consider for basket rigidity, especially if shipping tie wires are cut, is the style of basket legs. Chemical Requirements: The chemical composition of the dowels will comply with ASTM A510 and ASTM A1040 unless exception is required in ASTM A615. These dowels are designed to be cast into concrete to improve strength. 20 x 500mm Dowel Bar Mild Steel. We stock H10, H12, H16, H20 rebar in 1500mm lengths or ready to be cut to custom lengths or bent in any configuration. Product Specification. The contractor provides coring at each end of one dowel. The purpose of dowel bars is to transfer loads across a joint without restricting joint movement due to thermal contraction and expansion of the concrete. Polymeric Dowel Bars and Epoxy Coated Dowel Bars We are the premier fusion bonded polymeric and epoxy coated dowel bar specialist in the UK. Dowel Bars can be supplied in various diameters with sawn end to specific lengths. Standard dowel bars are generally available next day delivery, if ordered before 1pm. Contact Details. The consistency of the material is such that once it has dried and the concrete cast, free movement between the bar and the surrounding concrete is achieved. Bars complying with BS 4449:1997 [Specification for carbon steel bars for the reinforcement of concrete] or other high tensile bars shall not be bent after placing in the Works. The theoretical analysis found that the dowel length in Chinese specification is conservative. DOWEL BAR ALIGNMENT SPECIFICATIONS While the perfect alignment of each and every dowel bar is desirable, practical limitations in construction processes do exist. We can supply and manufacture dowel pins in mild steel, brass, stainless steel 303 and stainless steel 316, as well as Hardened & Ground Steel. We are able to offer expansion and contraction joint dowel bar cages, these are made to order. Make sure that you conform to the law by buying only CE marked dowel bars from Tunley Rod & Bar. Higher proof strength of 500 N/mm²and 650 N/mm²are available. DBC16/100: 16mm Expansion Dowel Caps: £0.90. TMT Bar; Epoxy Coated Steel Rebar; MS … Compressible Cork Filler: 25mm. Dowel bars are produced to diameters and lengths determined according to customer demands and in accordance with the terms of technical specifications and standards. All coatings comply with DOT specification. However, if the dowel bars are too short, the stress at the face of joint is increased resulting in concrete crushing. Because a concrete slab only has around 50% of its load-bearing capacity at the edges, dowels are needed to support the slab, help bear and transfer weight, and permit controlled movement of the two adjacent slabs (technically called the “approach and leave slabs”.) Round Dowel Sleeves Dowelsert – Reid™ Reid™ Dowelsert Round Dowel Sleeves supplied by InfraBuild Construction Solutions (formerly LIBERTY OneSteel Reinforcing) are designed for a variety of steel reinforcement applications. Precon Products, A leading national independent supplier of construction products To develop load transfer across a joint, dowel bars are arranged at specified intervals and at mid-depth of the pavement thickness. Coated Grade 250 bars may be bent to radii not less than BS 8666:2000 [Specification for scheduling, dimensioning, bending and cutting of steel reinforcement for concrete]. More in Products. Physical Requirements: Dowel bars supplied by Mar-Mac Wire Company will meet the following … 1.72. Availability: In stock. Dowel bar sleeves Dowel bar caps with a compressible filler in the end Debonding compound in 5 litre tins. Dowel bar insertion usually occurs after the vibrator but before the tamper bar. These ASTM A615 Grade 60 Steel Dowel Bars are used to carry out the transmission of load from one block to another, at the same time letting the axial thermal development alongside with the axis of dowel. Tel: 0161 790 8635 Fax: 0161 799 7083 Web: kbrebar.co.uk. Dowel bars always inserted in the mid-depth of the slab. Dowel Bar Sizes Stocked: 12mm x 900mm Dowel Bars 16mm x 600mm Dowel Bars 20mm x 600mm Dowel Bars High-grade PVC Dowel Sleeve Sizes Stocked: Diameter: 12mm, 16mm, and 20mm Length: 300mm - 450mm Slots are cut using diamond-tipped saw blades; the concrete is removed using lightweight jackhammers. Stainless Steel bars also available. They are often used with Rebar construction and laid across mesh. Country of Origin : Made in India : Minimum Order Quantity : 1 Piece : Product Description. Call today for a bespoke quote or order online in minutes. Did you know that all dowel bars sold in the UK must be CE marked? Stainless Steel bars also available. What is a dowel? In accordance with the Highway’s Agency Series 1000, Clause 1011 specification our polymeric and epoxy coated dowels provide good anti-corrosion qualities complying with the specifications salt spray test in accordance with BS.EN ISO 9227:2006 … The dowel bar assemblies are to be securely fixed to the subgrade by using metal pins to eliminate displacement by the plastic concrete (Figure 7-3). Rebar and Dowel Bar Stainless steel rebar and dowel bar manufactured in accordance with BS 6744 supplied cut and bent in accordance with BS 8666. D-Bar is designed for coating dowel bars in concrete roads, airfield joints and floor sections and is based on bitumen having a penetration between 100 and 200, blended with hydrocarbon solvents. They increase load transfer efficiency by allowing the leave slab to assume some of the load before the load is actually over it. A dowel is a cylindrical steel rod. The dowel bars are either coated or made up of stainless steel to protect it from corrosion. Dowel bar is generally supplied with a 0.2% proof of 250 N/mm² and a UTS of N/mm². Polymeric Dowel Bars and Epoxy Coated Dowel Bars; Dowel Bars Sleeves … For the smooth dowels the contract specifications state, "[Dowel] Bars shall conform to ASTM A615/A615M, Grade 40 for plain billet-steel bars of size and length indicated" (typically 20-inches on the drawings in our case). The dowel bars are usually of 32 to 38 mm diameter, 460mm long, and spaced at a distance of 305mm apart from each other. All phases of the production process are controlled through a quality control system, and control result reports are delivered to customers along with the product. Drawing accommodates typical sectional reinforcement Dowel detail for Beam and Slab. Tolerances are covered in the specifications and schematics are shown on Standard Plan P10. A 20mm dowel bar cap will fit over a 20mm reinforcing bar. Quantity. ASTM A615 Grade 60 Steel Price. Dowel rod sleeves are manufactured from high grade flexible PVC, and are designed to easily slip over the steel dowel rods to create a tough and durable debonded joint. Length: 100mm. 3.1 saw -cut the edge of the existing slab according to the specification, using the appropriate equipment 3.2 prepare the unsawn section of the exposed slab edge according to the specification to form a support using steel dowel bars 3.3 place the slip membrane in position and overlap it The Specifications are checked to determine the number of pins required for the different length assemblies. Dowel Bars can be supplied in various diameters with sawn end to specific lengths. 1.1 This specification covers plain steel dowel bars with protective fusion-bonded epoxy coating for use in concrete pavements. Dowels are solid pins, usually precision ground to narrow limits to permit accurate fitting. Dowel detail for Beam and Slab; Size: 110.84 k: Type: Free Drawing Category: Structure: Software: Autocad DWG: Collection Id: 1478: Published on: Thu, 06/08/2017 - 16:50: supercreativew… Dowel detail for Beam and Slab. Dowels perform the important job of load transfer between adjacent concrete slabs. DBC20/100: 20mm Expansion Dowel Caps: £0.96. Item Code. Stainless steel dowel bars. Dowel bars are round steel bars (not torr steel). Purchase. Each. Baskets with ^A, V _, or ^U _ style legs provide 24 more welds and approximately 12 ft (4 m) more wire in the frame than baskets designed with ^J _ legs. Steel Dowel Bars (12mm) are available from us in numerous lengths; please see the drop down menu for full details. By comparing the two cores, the dowel tips indicate the alignment of the dowel relative to the surface. Dowel bar inserters are automated attachments to slipform pavers that allow the paver to insert transverse joint dowel bars as part of the slipform paving process. On the other hand, regarding the length of dowel bars, it should not be too long because the induced stress at the end of long dowel bars is insignificant and is not effective in transferring loads between adjacent concrete panels. Specification and Installation of dowel bars. Useful downloads. KF06103DB20400 . Discounts … Mild Steel Dowel Bars. Stainless steel dowel bar are described by characteristics such as product form, strength grade and stainless steel designation. CONFIX 1 CONFIX 2 CONFIX 150 Polyester Resin A high performance, fast curing two-part chemical anchoring system based on unsaturated polyester resin in vinyl-toluene monomer. KB Rebar Unit 5, Dobson Park Industrial Estate Dobson Park Way Ince, Wigan WN2 2DY . 1.2 This specification is applicable for orders in either inch-pound units (as Specification A1078 ) or in SI units (as Specification A1078M ). All coatings comply with DOT specification. 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