aashto specifications for crushed stone as backfill materials

Section 301 Base Subbase and Subgrade Aggregate 5 85 percent is aggregate or else the material is classified as crushed stone or crushed gravel If continuous compliance with material specifications is questionable the engineer may require the

AASHTO T 21 and the test method for Mortar Strength AASHTO T 71 According to the Standard Specifications materials failing the organic impurities test are to be tested for the effect of organic impurities using the mortar strength test The results of the test are the basis for acceptance or rejection of the fine aggregate

STONE AGGREGATE DESCRIPTIONS for 2014 ACCOG Jt Purchasing NEW NAME OLD NAME Description AASHTO 10 washed and pipe bedding • This material is a crushed stone dust similar to the fines found in 2A • Material has many fines but will not compact and it does drain slowly AASHTO 57 2B

STANDARD SPECIFICATIONS of May 1 2008 755 Section 700 MATERIALS and MANUFACTURING SECTION 701 - HYDRAULIC CEMENTS 701-01 PORTLAND CEMENT SCOPE This Specification covers five types of portland cement as follows Type 1 For use in general concrete construction where low heat of hydration is not required and where no sulfate action is anticipated

4 Aggregate Specifications and Requirements Physical Quality Requirements Fine Aggregates AASHTO T 85 defines absorption as the increase in the weight of Specifications materials failing the organi c impurities test are to be tested for

Section 812—Backfill Materials Page 3 1 Crushed Stone Use a material manufactured from Class A or B stone free of soil overburden and having a soundness loss of not more than 15 percent 2 Natural Sand Use material that consists of strong hard durable particles is non-plastic and has a durability index of at least 70 3 Gradation

A Aggregate base course shall consist of crushed gravel or crushed stone conforming to the quality requirements of AASHTO M 147 The aggregate shall be free from lumps balls of clay or other objectionable matter and shall be durable and sound B Base course material shall conform to one of the following gradations as specified

Effective with the December 2019 Letting 106 2020 Standard Specifications Section 210 Structure Backfill 210 1 Description 1 This section describes furnishing backfill materials and backfilling excavations for bridges box culverts retaining walls and structural plate pipes and pipe arches

All material used for backfill including non-granular material shall meet the following specifications and shall be of a quality acceptable to the Engineer All backfill material shall be in a thawed state when placing and compacting and be free from rocks large or frozen lumps wood or other unsuitable material Backfill

Section 902 AGGREGATES 902 01 General Requirements crushed stone iron blast furnace slag reverberatory furnace slag or a blend of aggregates in accordance with Table 902-3 and this subsection The Engineer will only allow the use of granular material produced from crushed portland cement concrete for swamp backfill embankment

1107 - AGGREGATES FOR BACKFILL 1100-23 c MSE Walls Modular Block with Soil Reinforcing Geogrid 1 Composition Use granular backfill material in the structure volume of sand sand-gravel or crushed stone reasonably free from organics or otherwise deleterious materials and complies with the following 2 Quality

Material 208 02 08 CRUSHED ROCK A The materials properties shall conform to Subsection 704 03 06 Crushed Rock only for trench sidewalls meeting the minimum AASHTO material class A1 or A3 C If the sidewall trench soil is classified other than AASHTO Class A1 or A3 a recommendation TRENCH EXCAVATION AND BACKFILL 208

CCS- Crushed Carbonate Stone Provide aggregate according to the size specified in the material specification the construction item or as shown in AASHTO M 43 D Method of Test TABLE 703 01-1 SIZE OF COARSE AGGREGATE AASHTO M 43 Size No

Section 812—Backfill Materials Page 3 1 Crushed Stone Use a material manufactured from Class A or B stone free of soil overburden and having a soundness loss of not more than 15 percent 2 Natural Sand Use material that consists of strong hard durable particles is non-plastic and has a durability index of at least 70 3 Gradation

aashto specifications for crushed stone as aashto specifications for crushed stone as backfill materials Ciros crushing equipment is designed to achieve maximum productivity and …

aashto m43 notation aashto m145 no 4 4 75mm no 200 0 075mm ll pi cu cc i 2 crushed rock angular 3 n a angular crushed stone or rock crushed gravel crushed slag large voids with little or no fines 5 56 57 4 6 67 class v materials shall not be permitted as bedding and backfill material classes of embedment and backfill

Identify properties of commonly used backfill materials allowed in standard specifications Understand the differences between soil and aggregate fill material Understand pertinent factors related to the use of recycled and reclaimed materials as backfill Understand the practical factors related to the use of self compacting fill materials

Identify properties of commonly used backfill materials allowed in standard specifications Understand the differences between soil and aggregate fill material Understand pertinent factors related to the use of recycled and reclaimed materials as backfill Understand the practical factors related to the use of self compacting fill materials

B Backfill Material 1 Trench Backfill Native or Borrow Material placed in trench excavation and meeting Crushed stone crusher run CR-6 or bank run gravel Based on Table 901-A January 2001 MSHA Standard Specifications for Construction and Materials Percent Passing Each Sieve by Weight 3Crushed Stone Number 3

The American Association of State Highway Transportation Officials AASHTO has developed standards for using recycled industrial materials in cement and concrete AASHTO M 295 and AASHTO M 302 are standard specifications for using fly ash and ground granulated blast furnace slag in cement and concrete in roadways

AASHTO 57 This material has a 1-1 2 inch top size and is a clean material Often used for backfill for retaining walls used for subase for sheds also sometimes used as driveway stone Also used as the primary raw aggregate in Ready Mixed Concrete and some Hot-Mixed Asphalt mixes Will not compact

COLTO SPECIFICATIONS - MARCH 1998 The material shall comply with the requirements in clause 3602 COLTO The density requirements of the layer in which the material is used shall be applicable See subclause 3402 b COLTO In restricted areas the in situ dry density of gravel material shall comply wuth the requirements in the project

AASHTO 57 This material has a 1-1 2 inch top size and is a clean material Often used for backfill for retaining walls used for subase for sheds also sometimes used as driveway stone Also used as the primary raw aggregate in Ready Mixed Concrete and some Hot-Mixed Asphalt mixes Will not compact

The AASHTO Soil Classification System was developed by the American Association of State Highway and Transportation Officials and is used as a guide for the classification of soils and soil-aggregate mixtures for highway construction purposes The classification system was first developed by Hogentogler and Terzaghi in 1929 but has been revised several times since

This specification covers backfill material used as part of a mechanically Aggregate used for backfill material may consist of gravel crushed stone maximum density as determined by AASHTO T 99 Methods C or D with oversize

Owner or the Owner s representative the material from the excavation is not considered to be satisfactory for backfill the overcut shall be backfilled with crushed slag crushed stone or reef shell and separate payment will be made therefor except where overcut is caused by the Contractor s operations or for his convenience

SECTION 304 -- AGGREGATE BASE COURSE Standard Specifications 2010 of free draining material sand gravel crushed stone coarse or crushed stone very coarse below the crushed stone The substitution must be made across the entire section and will not be allowed for short or discontinuous segments

accordance with AASHTO T 96 d Materials that fail to meet organic impurity color test will be accepted provided relative strengt h at 7 and 28 days is more than consist of crushed stone free of vegetable matter and other del eterious substances SECTION 703 - AGGREGATES

backfill material placed on both sides of the pipe is considered to be contained in the same lift when 105 05 Use of Material Found in the Work Stone gravel sand or other material found in the it is permissible to voluntarily remove non-specification material and replace it with

Status of AASHTO Materials Standards and Test Methods—August 2017 This document shows all materials specifications practices and test methods that have been published as part of the AASHTO Standard Specifications for Transportation Materials and Methods of Sampling and Testing from its first publication in 1931 through the most recent edition