Concrete Pavement Construction Basics 5 Here misalignment of the dowel bars could eventually lead to joint damage Final check Dowel positions should be checked from three perspec tives 1 Sight down the grade to make sure all dowels are parallel to center line 2 Sight across the dowel baskets to make sure all dowels are level The basket
2019 08 22 nbsp 0183 32 Anchor rods are embedded in concrete to support structural steel and can be used with epoxy in existing concrete applications Threaded rod is often used along with a nut and or square plate washer when embedded in concrete to achieve required pull out values The ASTM A307 specification covers carbon steel bolts and studs ranging from 1 4 quot through 4 quot diameter
Shear dowels are typically used to resist interface shear across a shear plane – the roughened joint between existing and new concrete The primary shear mechanism – friction across the irregular surface – is enabled by the shear dowels that hold the surfaces together Therefore the standard design assumption is that the shear dowels are placed in direct tension as the
1 All monuments shall use either 5 8 inch 216 x 30 inches long iron rod or 3 4 inch 216 x 30 inches long iron pipe 2 All monuments shall be in accordance with the Oregon Revised Statutes Chapters 92 and 209 3 Place 3 2 quot x2 quot spacers cut from 2 quot concrete patio block evenly spaced to match finish grade 4
Figure 1a Typical dowel basket assembly 1 Figure 3 Effects of dowel embedment and diameter on dowel looseness Figure 6 Effect of concrete cover on dowel concrete shear capacity for 1 25 in and 1 5 in dowels Figure 14 Zinc alloy sleeved dowel as manufactured and after five weeks in sodium chloride bath
Type D Expansion Basket LENGTH OF DOWEL AS SPECIFIED SIDE VIEW END VIEW DIA AS REQUIRED XXXXXXXXXXXXXXXXX Product Code Description Plain Straight Weight Piece R03126 4 x 24 quot 1 34 R03075 4 x 36 quot 2 01 R03156 5 x 24 quot 2 09 R03090 5 x 36 quot 3 13 R02010 6 x 24 quot 3 00 R00117 6 x 30 quot 3 76 R03160 6 x 36 quot 4 51 R03093 8 x 24 quot 5 40
ACI 360 Design of Slabs on Ground Dowel Basket Dowel assembly for concrete floor and pavement joint locations Dowel Basket sleeve U S Patent Pending Dowel Basket Part No Description height x length Slab Plate Size Spacing SBDB382S18 SB Dowel Basket 3 x 12 6 3 8 x 2 x 12 18 OC SBDB382S24 SB Dowel Basket 3 1 2 x 12 7 3 8 x 2 x 12 24 OC
A field assembly dowel basket for concrete construction configured for in the field assembly from a small number of component parts including dowels dowel sleeves that loosely house the dowels W shaped frame wires that support the dowel sleeves straight shipping wires that connect dowel basket sections together and T connectors that join the frame sections to
Architectural precast concrete has been used since the early 20th century coming into wide use in the 1960s The versatility of precast concrete makes it ideal for architectural applications The exterior surface of a precast concrete piece can vary from a form face finish similar to cast in place to an exposed aggregate finish that is highly ornamental Some precast panels act as
larger dowels dowel length should actually increasewith dowel diameter so a 1 5 in dowel might require 24 inches or more of length to behave consistently with Timoshenko s model Fortunately we don t require that Current rationale We need that length in order to make sure that the joint is formed somewhere that provides
p 2 2004 2 5 t 0 5t top of slab 0 5l dowel t 0 5t 0 5l dowel section a a slab width dowel typ p c c patch p c c patch section b b section c c transverse saw cut used for joints located within the patch longitudinal joint longitudinal joint dowel support basket required for this application refer to standard construction detail for p c c
Dowel placement in concrete pavements to identify o problems with alignment o extent of misalignment Basket 1 8 1 2 NA DBI 1 4 NA 2 Minnesota 1 4 NA NA allowed Minnesota DOT Rep Spring 2004 Missouri No specs NA NA not allowed Missouri DOT Rep Spring 2004 Nebraska 1 4 NA NA allowed Nebraska DOR Rep Spring 2004 Ohio No specs NA NA
loop lines and ground rods for direct burial or concrete embedded ground grid systems The ABB compression system uses standard electrical connector installation tools Meets all applicable specifications ABB grid and ground rod connectors satisfy the requirements of CEC Section 10 for connecting to the grounding electrode system They also meet the requirements
The rule of thumb for dowel size is Dowel Diameter 1 8 of the Pavement Thickness Lengths from 15 18 inches 380 460 mm 6 0 inches 150 mm minimum embedment length on each side of the joint 1 0 1 50 in 25 40 mm diameter typical for roads 1 50 2 0 in 40 50 mm diameter typical for airfields Epoxy or other coating for corrosion protection Table 1 Dowel
With palms facing down lift dowel above and down behind your head Reverse and lower dowel to legs Do this times Page 4 of 4 Flip flops With one palm facing down and the other palm facing up flip the dowel over and back Do this times Wrist bends With elbows bent and palms down bend wrists up and down Do this times For informational purposes only
Threaded Rod Inserts Click to view threaded rod diameters included DWG DXF PDF posted 4 19 11 Rebar Dowel Inserts Click to view rebar sizes included DWG DXF PDF posted 4 19 11 Strong Bolt 174 Wedge Anchor product info Carbon Steel Click to view models included DWG DXF PDF posted 4 19 11 Strong Bolt 174 2 Wedge Anchor product
The dowel sleeves may house different types of dowels such as rectangular plate dowels and round rod dowels A field assembly dowel basket for concrete construction configured for in the field assembly from a small number of component parts including dowels dowel sleeves that loosely house the dowels W shaped frame wires that support the dowel sleeves
Detail 1 8 Veneer Concrete Block Detail at High Parapet 10 Detail 1 9 Veneer Concrete Block Detail at High Parapet 11 Detail 1 10 Recommended Tie Spacing for Concrete Block Veneer Wall 12 Detail 1 11 Veneer Concrete Block Cold Soffit Detail 13 Detail 1 12 Veneer Concrete Block Exhaust Vent Detail 14 Detail 1 13
The Diamond Dowel 174 System consists of the tapered plate dowel sleeve and installation template The Diamond Dowel 174 tapered plates are available in three sizes depending on the loads wheel type and repetition 1 4″ 6mm – typically used in 5″ 6″ slab depths 3 8″ 10 mm – typically used in 6″ 9″ slab depths
Concrete strength 4000 PSI Epoxy cure time 19 hours Temperature 65 176 F Rebar Size Diameter Depth Threaded Rod Rebar Dowel 3 8 3 1 cm 1 2 1 3 cm 4 10 2 cm 101 115 1 2 4 1 3 cm 5 8 1 6 cm 5 12 7 cm 51 70 5 8 5 1 6 cm 3 4 1 9 cm 6 15 2 cm 26 33 3 4 6 1 9 cm 7 8 2 2 cm 7 17 8 cm 17 23 7 8 7 2 2cm 1 2 5 cm 8 20
3 8 quot 3 3 4 3 2 1 2 quot 5 4 3 5 8 quot 6 1 4 5 4 3 4 quot 7 1 2 6 5 7 8 quot 9 7 6 1 quot 10 7 6 EDGE AND SPACING DISTANCES Anchoring too close to an edge or placing anchors too close to one another can decrease performance For 100 use LOAD CONDITIONS With few exceptions most mechanical anchors do not give maximum performance under all loading conditions Some
horizontally every 8 203mm and about 5 25 133mm vertically per block provides enough stability for placement of vertical rebar Vertical rebar can be further secured if it is slid through a staggered pattern of horizontal rebar The slots in the webs have been designed to accommodate this see Figure 3 LAP SPLICES amp DOWELS Figure 2a Contact lap splices Figure 2b Non
1 quot Dia and Larger 8 TPI THREADS 12 Solid Deformed Rebar SDR SDR ROD SERIES Made from reinforcing that meets CSA standard G30 18 M 92 and ASTM 615 An economical medium strength rod used for tie downs and rock reinforcement Use AR Expansion cone shell anchor series for blind hole and prestressed rebar anchor applications Use 2 tubes for
concrete is intended to slide over the dowel as the pavement expands and contracts If the dowels are out of alignment the pavement cannot properly slide on the dowels which may result in random cracking Baskets should be anchored with a minimum of 8 basket stakes per lane width Dowel baskets are required to be coated with a bond breaker
Dowel Basket Standardization National Concrete Consortium National Concrete Consortium San Antonio TX San Antonio TX March 31 2009 March 31 2009 John F Staton John F Staton Michigan DOT Summary of Dowel Basket Standardization Activities 2000 to Present Spring 2000 Initial questionnaire sent to 10 member states Midwest Concrete Consortium May
Product 5 8 X 1 Pull Dowel Pin PKG QTY 10 PC Pin Diameter 5 8 Pin Length 1 inch Material Grade C 1215 Material Case Hardened Steel Internal thread 1 4 20 Precision Ground Finish Made in USA Top Supplier of Left Hand Thread Bolts and Nuts 0 items in your cart FREE GROUND SHIPPING ON ORDERS OVER 50 00 USPS OR UPS Home Catalog Left Hand
Ground Rods CSA C22 2 ANSI 03 8 z z c Meet the following industry standards ANSI UL 467 ANSI NEMA GRI Rural Utilities Service RUS Steel cold drawn ASTM A 1080 SAE 1018 1035 carbon steel Tensile strength 80 000 1 OO OOO PSI Steel Rockwell Hardness B80 minimum Copper coating is a minimum of 010 inches meeting or exceeding UL CSA and ANSI
5 Forces on Retaining Walls 6 Earthquake Seismic Design 7 Soil Bearing and Stability 8 Designing the Cantilever Wall Stem 9 Footing Design 10 Pier and Pile Foundations 11 Counterfort Retaining Walls 12 Cantilevered Tilt Up Walls 13 Wood Retaining Walls 14 Gravity Walls 15 Gabion Walls 16 Segmental Retaining Walls 17 Swimming Pool
Kits include 2 x 1200 mm rods coupling dowel driving stud and spike to make 8 ft rod Connections to the rods can be by mechanical clamps compression or by Furse s own FurseWELD exothermic welding system UL467 BS EN 50164 2 BS EN 7430 Total Solution to Earthing amp Lightning Protection LIT211GB 0115 7 7 7 Earth electrodes Earth rods Earth rod
2017 02 14 nbsp 0183 32 The 5 8 in x 240 in Rebar is made from ASTM A615 material for durability The 40 grade rebar features a 60 000 psi minimum yield strength for flexible use Made from ASTM A615 material Can be used in concrete for expansion and contraction reinforcement purposes