1、Standard Specification for Steel Wire, Deformed, for Concrete Reinforcement AASHTO Designation: M 225M/M 225-09 (2013) ASTM Designation: A496/A496M-07 American Association of State Highway and Transportation Officials 444 North Capitol Street N.W., Suite 249 Washington, D.C. 20001 TS-4g M 225M/M 225
2、-1 AASHTO Standard Specification for Steel Wire, Deformed, for Concrete Reinforcement AASHTO Designation: M 225M/M 225-09 (2013) ASTM Designation: A496/A496M-07 1. SCOPE 1.1. This specification covers deformed steel wire that has been cold worked by drawing, rolling, or both drawing and rolling to b
3、e used as produced, or in fabricated form, for the reinforcement of concrete in sizes having nominal cross-sectional areas not less than 6.45 mm20.01 in.2. 1.2. Supplement S1 describes high-strength wire, which shall be furnished when specifically ordered. It shall be permissible to furnish high-str
4、ength wire in place of regular wire if mutually agreed to by the purchaser and manufacturer. 1.3. The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used in
5、dependently of the other. Combining values from the two systems may result in nonconformance with the standard. The inch-pound units are shown in brackets except in Table 1. 2. REFERENCED DOCUMENTS 2.1. AASHTO Standards: M 221M/M 221, Steel Welded Wire Reinforcement, Deformed, for Concrete T 244, Me
6、chanical Testing of Steel Products 2.2. ASTM Standards: A700-05, Standard Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment (withdrawn 2014) E83, Standard Practice for Verification and Classification of Extensometer Systems 2.3. Military Standard: MIL-STD-129, Mar
7、king for Shipment and Storage 2.4. Federal Standard: Fed. Std. No. 123, Marking for Shipments (Civil Agencies) 2.5. ACI Standard: ACI 318, Building Code Requirements for Structural Concrete 2015 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplicatio
8、n is a violation of applicable law.TS-4g M 225M/M 225-2 AASHTO 3. TERMINOLOGY 3.1. Description of Terms Specific to This Standard: 3.1.1. deformed steel wire for reinforcementas used within the scope and intent of this specification, shall mean any cold-worked, deformed steel wire intended for use a
9、s reinforcement in concrete construction, the wire surface having deformations that (1) inhibit longitudinal movement of the wire in such construction and (2) conform to the provisions of Section 5. It shall be permissible for the deformations to be raised or indented. 3.1.2. size numberas used in t
10、his specification, refers to the numerical designation of the wire as tabulated in Table 1 and Table 2 under the column headed “Deformed Wire Size Number,” or a number indicating the nominal cross-sectional area of the deformed wire in square millimeters hundredths of a square inch. 4. ORDERING INFO
11、RMATION 4.1. When deformed wire is ordered by size number, the dimensional requirements shall be as given in Table 1. When deformed wire is ordered to dimensions other than the sizes shown, the nominal dimensions shall be developed from the applicable unit mass per meter of the section. 4.2. It shal
12、l be the responsibility of the purchaser to specify all requirements that are necessary for the manufacture and delivery of the wire under this specification. Such requirements to be considered include, but are not limited to, the following: 4.2.1. Quantity (mass) weight, 4.2.2. Name of material (de
13、formed steel wire for concrete reinforcement), 4.2.3. Wire diameter (see Table 1 and Table 2), 4.2.4. Yield strength measurement (see Sections 8 and 13.3), 4.2.5. Packaging (see Section 17), 4.2.6. AASHTO designation and year of issue, and 4.2.7. Special requirements if any (see Supplement S1). Note
14、 1A typical ordering description is as follows: 25 000 kg deformed steel wire for concrete reinforcement, size No. D-12, on pipe carriers, polyethylene shrouded, to M 225M-_. 50,000 lb deformed steel wire for concrete reinforcement, size No. D-12 MD80, in 800-kg 2000-lb secured coils to M 225-_. 201
15、5 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.Table 1Dimensional Requirements for Deformed Steel Wire for Concrete ReinforcementSI Units (U.S. Customary Units) Deformed Wire Sizea, b, cNominal Dimensions
16、(D in.2) ( 100) Unit Weight DiameterdCross- Sectional AreaePerimeter Spacing, Max Spacing, Min Min Avg Height of Deformations kg/m (lb/ft) mm (in.) mm2(in.2) mm (in.) mm (in.) mm (in.) mmf(in.) MD 25 D 3.9 0.196 0.132 5.64 0.222 25 0.039 17.7 0.698 7.24 0.285 4.62 0.182 0.252 0.010 MD 30 D 4.6 0.235
17、 0.158 6.18 0.243 30 0.047 19.4 0.764 7.24 0.285 4.62 0.182 0.279 0.011 MD 35 D 5.4 0.275 0.185 6.68 0.263 35 0.054 21.0 0.826 7.24 0.285 4.62 0.182 0.302 0.012 MD 40 D 6.2 0.314 0.211 7.14 0.281 40 0.062 22.4 0.883 7.24 0.285 4.62 0.182 0.320 0.013 MD 45 D 7.0 0.353 0.237 7.57 0.298 45 0.070 23.8 0
18、.936 7.24 0.285 4.62 0.182 0.342 0.014 MD 50 D 7.7 0.392 0.264 7.98 0.314 50 0.078 25.1 0.987 7.24 0.285 4.62 0.182 0.360 0.014 MD 55 D 8.5 0.432 0.290 8.37 0.329 55 0.085 26.3 1.04 7.24 0.285 4.62 0.182 0.378 0.015 MD 60 D 9.3 0.471 0.316 8.74 0.344 60 0.093 27.5 1.08 7.24 0.285 4.62 0.182 0.392 0.
19、015 MD 65 D 10.1 0.510 0.343 9.10 0.358 65 0.101 28.6 1.13 7.24 0.285 4.62 0.182 0.455 0.018 MD 70 D 10.8 0.549 0.369 9.44 0.372 70 0.109 29.7 1.17 7.24 0.285 4.62 0.182 0.470 0.018 MD 80 D 12.4 0.628 0.422 10.1 0.397 80 0.124 31.7 1.25 7.24 0.285 4.62 0.182 0.505 0.020 MD 90 D 13.9 0.706 0.475 10.7
20、 0.421 90 0.140 33.6 1.32 7.24 0.285 4.62 0.182 0.535 0.021 MD 100 D 15.5 0.785 0.527 11.3 0.444 100 0.155 35.4 1.40 7.24 0.285 4.62 0.182 0.565 0.022 MD 120 D 18.6 0.942 0.633 12.4 0.487 120 0.186 38.8 1.53 7.24 0.285 4.62 0.182 0.620 0.024 MD 130 D 20.1 1.02 0.686 12.9 0.507 130 0.202 40.4 1.59 7.
21、24 0.285 4.62 0.182 0.645 0.025 MD 200 D 31.0 1.57 1.05 16.0 0.628 200 0.310 50.1 1.97 7.24 0.285 4.62 0.182 0.800 0.031 MD 290 D 45.0 2.28 1.53 19.2 0.757 290 0.450 60.4 2.38 7.24 0.285 4.62 0.182 0.961 0.0379 a The number following the prefix indicates the nominal cross-sectional area of the defor
22、med wire in square millimeters. b For sizes other than those shown above, the size number shall be the number of one hundredths of a square inch in the nominal area of the deformed wire cross section, prefixed by the letters MD. c These sizes represent the most readily available sizes in the welded
23、wire reinforcement industry. Other wire sizes are available and many manufacturers can produce them in 1-mm2 0.0015-in.2 increments. d The nominal diameter of a deformed wire is equivalent to the diameter of a plain wire having the same mass per meter as the deformed wire. e The cross-sectional area
24、 is based on the nominal diameter. The area in square millimeters inches is calculated by dividing the unit mass weight in kg/m lb/in. by 7 106(mass of 1 mm3 of steel 0.2833 weight of 1 in.3 of steel) or by dividing the unit mass weight in kg/m lb/ft by 0.007849 (mass of steel 1 mm2and 1 m long) 3.4
25、 (weight of steel 1 in.2and 1 ft long). f The minimum average height of the deformations shall be determined from measurements made on no fewer than two typical deformations from each line of deformations on the wire. Measurements shall be made at the center of indentation as described in Section 7.
26、7. TS-4gM 225M/M 225-3AASHTO 2015 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-4g M 225M/M 225-4 AASHTO Table 2Dimensional Requirements for Deformed Steel Wire for Concrete ReinforcementU.S. Customary U
27、nits Wire SizesaDeformed Wire Size Numberb, c, dNominal Dimensions Deformation Requirements Unit Weight, lb/ft (kg/m) Diameter, in. (mm)cCross-Sectional Area, in.2 (mm2)ePerimeter, in. (mm) Max, in. (mm) Min, in. (mm) Min Avg Height of Deformations, in. (mm)f, gD-1 0.034 0.051 0.113 2.87 0.010 6.45
28、0.354 9.00 0.285 7.24 0.182 4.62 0.0045 0.114 D-2 0.068 0.101 0.159 4.05 0.020 12.9 0.501 12.7 0.285 7.24 0.182 4.62 0.0063 0.160 D-3 0.102 0.152 0.195 4.96 0.030 19.4 0.614 15.6 0.285 7.24 0.182 4.62 0.0078 0.198 D-4 0.136 0.202 0.226 5.73 0.040 25.8 0.709 18.0 0.285 7.24 0.182 4.62 0.0101 0.257 D-
29、5 0.170 0.253 0.252 6.41 0.050 32.3 0.793 20.1 0.285 7.24 0.182 4.62 0.0113 0.287 D-6 0.204 0.304 0.276 7.02 0.060 38.7 0.868 22.1 0.285 7.24 0.182 4.62 0.0124 0.315 D-7 0.238 0.354 0.299 7.58 0.070 45.2 0.938 23.8 0.285 7.24 0.182 4.62 0.0134 0.340 D-8 0.272 0.405 0.319 8.11 0.080 51.6 1.00 25.5 0.
30、285 7.24 0.182 4.62 0.0143 0.363 D-9 0.306 0.455 0.339 8.60 0.090 58.1 1.06 27.0 0.285 7.24 0.182 4.62 0.0152 0.386 D-10 0.340 0.506 0.357 9.06 0.100 64.5 1.12 28.5 0.285 7.24 0.182 4.62 0.0160 0.406 D-11 0.374 0.557 0.374 9.51 0.110 71.0 1.18 29.9 0.285 7.24 0.182 4.62 0.0187 0.475 D-12 0.408 0.607
31、 0.391 9.93 0.120 77.4 1.23 31.2 0.285 7.24 0.182 4.62 0.0195 0.495 D-13 0.442 0.658 0.407 10.3 0.130 83.9 1.28 32.5 0.285 7.24 0.182 4.62 0.0203 0.516 D-14 0.476 0.708 0.422 10.7 0.140 90.3 1.33 33.7 0.285 7.24 0.182 4.62 0.0211 0.536 D-15 0.510 0.759 0.437 11.1 0.150 96.8 1.37 34.9 0.285 7.24 0.18
32、2 4.62 0.0218 0.554 D-16 0.544 0.810 0.451 11.5 0.160 103 1.42 36.0 0.285 7.24 0.182 4.62 0.0225 0.572 D-17 0.578 0.860 0.465 11.8 0.170 110 1.46 37.1 0.285 7.24 0.182 4.62 0.0232 0.589 D-18 0.612 0.911 0.479 12.2 0.180 116 1.50 38.2 0.285 7.24 0.182 4.62 0.0239 0.607 D-19 0.646 0.961 0.492 12.5 0.1
33、90 122 1.55 39.2 0.285 7.24 0.182 4.62 0.0245 0.622 D-20 0.680 1.01 0.505 12.8 0.200 129 1.59 40.3 0.285 7.24 0.182 4.62 0.0252 0.640 D-21 0.714 1.06 0.517 13.1 0.210 135 1.62 41.3 0.285 7.24 0.182 4.62 0.0259 0.658 D-22 0.748 1.11 0.529 13.4 0.220 141 1.66 42.2 0.285 7.24 0.182 4.62 0.0265 0.673 D-
34、23 0.782 1.16 0.541 13.7 0.230 148 1.70 43.2 0.285 7.24 0.182 4.62 0.0271 0.688 D-24 0.816 1.21 0.553 14.0 0.240 154 1.74 44.1 0.285 7.24 0.182 4.62 0.0277 0.704 D-25 0.850 1.26 0.564 14.3 0.250 161 1.77 45.0 0.285 7.24 0.182 4.62 0.0282 0.716 D-26 0.884 1.32 0.575 14.6 0.260 167 1.81 45.9 0.285 7.2
35、4 0.182 4.62 0.0288 0.732 D-27 0.918 1.37 0.586 14.9 0.270 174 1.84 46.8 0.285 7.24 0.182 4.62 0.0293 0.744 D-28 0.952 1.42 0.597 15.2 0.280 180 1.88 47.6 0.285 7.24 0.182 4.62 0.0299 0.759 D-29 0.986 1.47 0.608 15.4 0.290 187 1.91 48.5 0.285 7.24 0.182 4.62 0.0304 0.772 D-30 1.02 1.52 0.618 15.7 0.
36、300 193 1.94 49.3 0.285 7.24 0.182 4.62 0.0309 0.785 D-31 1.05 1.57 0.628 16.0 0.310 200 1.97 50.1 0.285 7.24 0.182 4.62 0.0314 0.798 D-45 1.53 2.28 0.757 19.2 0.450 290 2.38 60.4 0.285 7.24 0.182 4.62 0.0379 0.961 aIn this table only, inch-pound units are regarded as standard and SI units are shown
37、 in brackets. b The number following the prefix indicates the nominal cross-sectional area of the deformed wire in square inches square millimeters. cFor sizes other than those shown above, the size number shall be the number of one hundredths of a square inch in the nominal area of the deformed wir
38、e cross section prefixed by the letter D. dThese sizes represent the most readily available sizes in the welded wire reinforcement industry. Other wire sizes are available and many manufacturers can produce them in 0.0015 in.2 1 mm2 increments. eThe nominal diameter of a deformed wire is equivalent
39、to the diameter of a plain wire having the same weight per foot as the deformed wire. fThe cross-sectional area is based on the nominal diameter. The area in square inches millimeters is calculated by dividing the unit weight mass in lb/in. kg/mm by 0.2833 (weight of 1 in.3of steel) 7 10-6(mass of 1
40、 mm3of steel), or by dividing the unit weight mass in lb/ft kg/m by 3.4 (weight of steel 1 in.2and 1 ft long) 0.007849 (mass of 1 mm2and 1 m long). g The minimum average height of the deformations shall be determined from measurements made on no fewer than two typical deformations from each line of
41、deformations on the wire. Measurements shall be made at the center of indentation as described in Section 6.2. 5. MATERIALS AND MANUFACTURE 5.1. The steel shall be made by one of the following processes: open hearth, electric furnace, or basic oxygen. 5.2. The deformed steel wire shall be produced f
42、rom rods or bars that have been hot rolled from billets. 2015 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-4g M 225M/M 225-5 AASHTO 6. REQUIREMENTS 6.1. Deformations shall be spaced along the wire at a
43、substantially uniform distance and shall be symmetrically dispersed around the perimeter of the section. The deformations on all longitudinal lines of the wire shall be similar in size and shape. A minimum of 25 percent of the total surface area shall be deformed by measurable deformations. 6.2. Def
44、ormed wire shall have two or more lines of deformations. 6.3. The average longitudinal spacing of deformations shall be not less than 3.5 nor more than 5.5 deformations per 25.4 mm 1 in. in each line of deformations on the wire. 6.4. The minimum average height at the center of typical deformations b
45、ased on the nominal wire diameters shown in Table 1 and Table 2 shall be as follows: Wire Sizes Min Avg Height of Deformations, Percent of Nominal Wire Diameter D-3 and finer 4 Coarser than D-3 through D-10 41/2Coarser than D-10 5 6.5. The deformation shall be placed with respect to the axis of the
46、wire so that the included angle is not less than 45 degrees or, if deformations are curvilinear, the angle formed by the transverse axis of the deformation and the wire axis shall be not less than 45 degrees. Where the line of deformations forms an included angle with the axis of the wire from 45 de
47、grees to 70 degrees inclusive, the deformations shall alternately reverse in direction on each side, or those on one side shall be reversed in direction from those on the opposite side. Where the included angle is greater than 70 degrees, a reversal in direction is not required. 7. DIMENSIONS 7.1. The average spacing of deformation shall be determined by dividing a measured len
