AASHTO M 178M M 178-2007 Standard Specification for Concrete Drain Tile《混凝土排水瓦管的标准规范[替代 AASHTO M 178M AASHTO M178M AASHTO M178M AASHTO M178M AASHTO M178M AASHTO M178M]》.pdf
《AASHTO M 178M M 178-2007 Standard Specification for Concrete Drain Tile《混凝土排水瓦管的标准规范[替代 AASHTO M 178M AASHTO M178M AASHTO M178M AASHTO M178M AASHTO M178M AASHTO M178M]》.pdf》由会员分享,可在线阅读,更多相关《AASHTO M 178M M 178-2007 Standard Specification for Concrete Drain Tile《混凝土排水瓦管的标准规范[替代 AASHTO M 178M AASHTO M178M AASHTO M178M AASHTO M178M AASHTO M178M AASHTO M178M]》.pdf(12页珍藏版)》请在麦多课文档分享上搜索。
1、 Standard Specification for Concrete Drain Tile AASHTO Designation: M 178M/M 178-07 (2012)1ASTM Designation: C 412M-05a and C 412-05a American Association of State Highway and Transportation Officials 444 North Capitol Street N.W., Suite 249 Washington, D.C. 20001 TS-4a M 178M/M 178-1 AASHTO Standar
2、d Specification for Concrete Drain Tile AASHTO Designation: M 178M/M 178-07 (2012)1ASTM Designation: C 412M-05a and C 412-05a 1. SCOPE 1.1. This specification covers concrete drain tile with internal diameters from 100 mm (4 in.) to 900 mm (36 in.) that is intended to be used for surface and subsurf
3、ace drainage. 1.2. This specification is applicable for orders in either SI units (M 178M) or in inch-pound units (M 178). SI units and inch-pound units are not necessarily equivalent. Inch-pound units are shown in brackets in the text for clarity, but they are the applicable values when the materia
4、l is ordered to M 178. Note 1This specification is a manufacturing and purchase specification only and does not include requirements for bedding, backfill, or the relationship between field load condition and the strength classification of drain tile. However, experience has shown that the successfu
5、l performance of the product depends upon the proper selection of the class of drain tile, type of bedding and backfill, and care that the installation conforms to the construction specifications. The owner of the reinforced concrete pipe specified herein is cautioned that the field requirements mus
6、t be correlated with the class of pipe specified and provide inspection at the construction site. 2. REFERENCED DOCUMENTS 2.1. AASHTO Standards: M 6, Fine Aggregate for Hydraulic Cement Concrete M 80, Coarse Aggregate for Hydraulic Cement Concrete M 85, Portland Cement M 240M/M 240, Blended Hydrauli
7、c Cement M 262, Concrete Pipe and Related Products M 295, Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete M 302, Slag Cement for Use in Concrete and Mortars T 280, Concrete Pipe, Manhole Sections, or Tile 2.2. ASTM Standards: C 989, Standard Specification for Slag Cement for Us
8、e in Concrete and Mortars C 1116/C 1116M, Standard Specification for Fiber-Reinforced Concrete 3. TERMINOLOGY 3.1. DefinitionsFor definitions of terms relating to concrete pipe, see M 262. 2014 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication
9、 is a violation of applicable law.TS-4a M 178M/M 178-2 AASHTO 4. CLASSIFICATION 4.1. Drain tile manufactured according to this specification shall be of the following four classes: 4.1.1. Standard-Quality Concrete Drain Tileintended for land drainage of ordinary soils where the tile are laid in tren
10、ches of moderate depths and widths. Standard-Quality concrete drain tile are not recommended for use where internal diameters in excess of 300 mm 12 in. are required. 4.1.2. Extra-Quality Concrete Drain Tileintended for land drainage of ordinary soils where the tile are laid in trenches of considera
11、ble depths or widths, or both. 4.1.3. Heavy-Duty Extra-Quality Concrete Drain Tileintended for land drainage of ordinary soils where the tile are laid in trenches of large depths or widths, or both. 4.1.4. Special-Quality Concrete Drain Tileintended for land drainage where special precautions are ne
12、cessary for concrete tile laid in soils that are markedly acid or contain unusual quantities of sulfates (Section 7), and where the tile are laid in trenches of considerable depths or widths, or both. 4.1.4.1. Where the calculated loads are in excess of the crushing strengths prescribed in the physi
13、cal requirements for Extra-Quality and Special-Quality concrete drain tile, tile strengths must be specified in advance by the owner. 5. BASIS OF ACCEPTANCE 5.1. The acceptability of drain tile shall be determined by (1) the results of the physical tests as specified in Section 8, and in T 280; (2)
14、measurements and inspection to ascertain whether the tile conform to the requirements regarding dimensions, shape, and freedom from visible defects; and (3) the manufacturers certification in writing that the tile have been made in accordance with any special provisions, such as strength, absorption
15、, permeability, type of cement, admixture, curing conditions, etc. 5.2. The owner shall specify in writing the class or classes of concrete tile to be supplied, whether Standard-Quality, Extra-Quality, Heavy-Duty Extra-Quality, or Special-Quality. Unless Extra-Quality, Heavy-Duty Extra-Quality, or S
16、pecial-Quality concrete drain tile have been specified, Standard-Quality drain tile shall be accepted. 6. MATERIALS 6.1. ConcreteThe concrete shall consist of cementitious materials, mineral aggregates, and water. 6.2. Cementitious Materials: 6.2.1. CementCement shall conform to the requirements for
17、 portland cement of M 85 or shall be portland blast-furnace slag cement or slag modified portland cement or portland-pozzolan cement conforming to the requirements of M 240M/M 240, except that the pozzolan constituent in the Type IP portland-pozzolan cement shall be fly ash. 6.2.2. Fly AshFly ash sh
18、all conform to the requirements of M 295, Class F or Class C. 6.2.3. Ground Granulated Blast-Furnace Slag (GGBFS)GGBFS shall conform to the requirements of Grade 100 or 120 of ASTM C 989. 2014 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication
19、is a violation of applicable law.TS-4a M 178M/M 178-3 AASHTO 6.2.4. Allowable Combinations of Cementitious MaterialsThe combination of cementitious materials used in the concrete shall be one of the following: 6.2.4.1. Portland cement only, 6.2.4.2. Portland blast-furnace slag cement only, 6.2.4.3.
20、Slag modified portland cement only, 6.2.4.4. Portland-pozzolan cement only, 6.2.4.5. A combination of portland cement and fly ash, 6.2.4.6. A combination of portland cement and ground granulated blast-furnace slag, or 6.2.4.7. A combination of portland cement, fly ash (not to exceed 25 percent of th
21、e total cementitious weight), and ground granulated blast-furnace slag (not to exceed 25 percent of the total cementitious weight). 6.3. AggregatesAggregates shall conform to M 6 and M 80, except that the requirement for gradation shall not apply. 6.4. Admixtures and BlendsAdmixtures and blends shal
22、l be used only with the approval of the owner. 6.5. Synthetic FibersAt the owners option, collated fibrillated virgin polypropylene fibers are not prohibited from being used as a nonstructural manufacturing material. Only Type III synthetic fibers designed and manufactured specifically for use in co
23、ncrete and conforming to the requirements of ASTM C 1116/C 1116M shall be used. 7. CHEMICAL REQUIREMENTS 7.1. Acid and Sulfate Resistance: 7.1.1. The owner is not prohibited from specifying special requirements in order to increase the durability of the drain tile in cases where the soils, soil wate
24、rs, or drainage waters are markedly acid (Section 7.1.1.1) or contain moderate or severe quantities of soil sulfates (Section 7.1.1.2). Without a specific agreement in advance, no drain tile shall be rejected by reason of its composition as determined later by chemical analyses. 7.1.1.1. Soils or dr
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
5000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- AASHTOM178MM1782007STANDARDSPECIFICATIONFORCONCRETEDRAINTILE 混凝土 排水 标准规范 替代 AASHTOM178MAASHTOM178MAASHTOM178MAASHTOM178MAASHTOM178MAASHTOM178MPDF

链接地址:http://www.mydoc123.com/p-417688.html