PHYSICAL PROPERTIES OF AGGREGATES

Physical Properties of Aggregates 4 Coarse Aggregate Angularity • Measured on + 4.75 mm material • Based on fractured faces – fractured surface larger than 25% of aspect ratio • ASTM D 5821 • Specification requirements depend on: – depth of layer within pavement

E. Steel Slag Aggregate. Provide open-hearth (OH), basic oxygen furnace (BOF), and electric arc furnace (EAF) steel slag aggregate (known as steel slag) according to the following requirements when 703.04 aggregate for asphalt concrete base or 703.05 aggregate for asphalt intermediate course

PART 9-MATERIALS - TN.gov

903.05-Aggregate for Mineral Aggregate Base and Surface Courses 721 903.06-Aggregate for Plant Mix Base and Leveling Courses (Hot Limits Per Cent by Weight 1. Clay Lumps 0.5 2. Coal and Lignite 0.5 with these Specifications. The aggregate shall be of 2 Types:

Standard Specification for Concrete Aggregates1

TABLE 1 Limits for Deleterious Substances in Fine Aggregate for Concrete Item Mass Percent of Total Sample, max Clay lumps and friable particles 3.0 Material finer than 75-µm (No. 200) sieve: Concrete subject to abrasion 3.0A All other concrete 5.0A Coal and lignite: Where surface appearance of concrete is of importance 0.5 All other concrete 1.0

Division II Section 2200 Paving

2202.1 Summary: This section includes the construction of aggregate base course as outlined in the contract special provisions and on the plans. 2202.2 Material: The base course material shall consist of crushed stone aggregate with not more than 1.0% clay lumps and

Aggregate Archives - CivilBlog.Org

CLAY LUMPS AND FRIABLE PARTICLES IN AGGREGATE (ASTM-C-142) Suryakanta | October 13, 2015. Test for Clay Lumps and Friable Particles Purpose Clay and friable particles may be present in the form of lumps in natural aggregates. If they are near the Read More. Aggregate. DETERMINATION OF RODDED UNIT WEIGHT OF COARSE AGGREGATE (ASTM-C-29)

S T A T E - TN.gov

S T A T E O F T E N N E S S E E (Rev. 5-18-15) January 1, 2015 (Rev Limits Percent by Weight Clay Lumps 0.5 Coal and Lignite 0.5 Material Passing the No. 200 Sieve (1)(3) 3.0 Subsection 903.05 – Aggregate for Mineral Aggregate Base and Surface Courses

Aggregate Production and Stockpiling - Alberta

When producing Designation 7 Class 40, "Cement Stab ilized Base Course Aggregate" in the event that clay lumps are encountered, the maximum allowable size of material shall be 25 mm. Acceptance of processed aggregates shall take place when they are in their final position and have met all the requirements of the Contract.

SECTION 02050 SOILS AND AGGREGATES FOR EARTHWORK

B. Aggregate base course (untreated base course): 1. Crushed gravel. 2. Consists of hard durable particles of fragments of stone or gravel; screened or crushed to required size and grading; and free from organic matter, lumps or balls or clay, alkali, or other deleterious matter. 3.

AGGREGATE TECHNICIAN REFERENCE MANUAL 2019-2020

Clay Lumps and Friable Particles IM 368 Step instructions to perform 'clay lump' test on representative coarse aggregate samples. Aggregate Source Locations and Basic Source Information IM 409 IM T-203 • Aggregate source approvals • Fine aggregate approval • PCC coarse aggregate durability ratings •

Cleanliness and Deleterious Materials -

Aggregates must be relatively clean when used in HMA or PCC.Vegetation, soft particles, clay lumps, excess dust and vegetable matter are not desirable because they generally affect performance by quickly degrading, which causes a loss of structural support and/or prevents binder-aggregate bonding.To test for clay lumps or friable particles, a sample is first washed and dried to remove material

S20 CMM - 860 Materials Testing and Acceptance - Aggregates

Aggregates furnished for base courses, and aggregates or granular materials furnished for subbase courses, that contain moisture in excess of 7% when measured by the ton are required to have the moisture content reduced to 7% or less before being weighed, or have the moisture content in excess of 7% deducted from the measured weight.

Specification for basecourse aggregate TNZ M/4

SP/SM4:060418 SPECIFICATION FOR BASECOURSE AGGREGATE Page 4 of 15 4.2.1.2 Clay Index The clay index of the fraction of basecourse passing the 75 μm sieve shall not be greater than 3 when the aggregate is tested according to NZS 4407 : 1991, Test 3.5 Clay Index Test. 4.2.1.3 Plasticity Index

ITEM P-304 CEMENT-TREATED AGGREGATE BASE COURSE (CTB

05-24-19 MSCAA 08-1260-03 ADDENDUM NO. 4 P-304 Page 1 ITEM P-304 CEMENT-TREATED AGGREGATE BASE COURSE (CTB) DESCRIPTION 304-1.1 This item shall consist of a cement-treated base (CTB) course composed of mineral aggregate and

Clay, Aggregate and Concrete - Texas A&M University

CLAY, AGGREGATE, AND CONCRETE RESEARCH REPORT 71-3 (Final) with the problem of writing a specification to limit a certain property and finds that sufficient information concerning that property, or how to detect clay in concrete aggregates, and a study of the

What is the difference between P208 and P209

The aggregate shall be free from lumps of clay, organic matter, and other objectionable materials or coatings. And for P-209 This item consists of a base course composed of crushed aggregate base constructed on a prepared course in accordance with these specifications and in conformity to the dimensions and typical cross-sections shown on the plans.

SECTION 3: SUB BASE AND BASE COURSES

3.01.04 AGGREGATES FOR BASE COURSES A. Aggregates for use in base course construction shall be either crushed stone or crushed gravel. The fine aggregate shall consist of screenings obtained from crushed stone, gravel or sand. Aggregate shall be washed if necessary to remove excessive quantities of clay, silty clay or salts.

PART 9-MATERIALS - TN.gov

903.05-Aggregate for Mineral Aggregate Base and Surface Courses 721 903.06-Aggregate for Plant Mix Base and Leveling Courses (Hot Limits Per Cent by Weight 1. Clay Lumps 0.5 2. Coal and Lignite 0.5 with these Specifications. The aggregate shall be of 2 Types:

SECTION 701 AGGREGATES

Clay Lumps 0.25 Soft Fragments 5.00 Thin or elongated pieces having a length greater than five times average thickness 15.00 Material passing the No. 200 sieve 1.001 Notes: 1. In crushed aggregates, if the material finer than the No. 200 sieve consists of fracture dust essentially free from clay or shale, the maximum limit may be

Aggregate in Concrete - The Concrete Network

DO use aggregate that's in compliance with ASTM C 33, "Standard Specifications for Concrete Aggregates." Aggregates must be sound, clean, hard, durable, and free of excessive fines or contaminates that can affect cement hydration or disrupt the paste-aggregate bond. DON'T exceed limits for deleterious material content in fine and coarse aggregates.

RECOMMENDED GUIDE SPECIFICATIONS FOR LONG LIFE

aggregate by the LA Abrasion test (AASHTO T96) shall not exceed 40%. 2. Fine Aggregates a. Fine aggregate shall be crushed materials and conform to the following table: b. Fine aggregate shall have a maximum of 1.0% clay lumps and friable particles as determined by AASHTO T112. It shall consist of hard, though grains free of deleterious

3505 SPECIFICATION FOR SOIL STABILIZED GRAVEL BASE COURSE

3505 - SPECIFICATION FOR GRANULAR BASE COURSE 3505 - l DESCRIPTION 1.01 The work shall consist of spreading and compacting crushed and pugmilled aggregate on a prepared surface. 1.02 The following definitions shall apply: (a) Acceptance limit:

Standard Specification for Concrete Aggregates

Note 1: This specification is regarded as adequate to ensure satisfactory materials for most concrete. It is recognized that, for certain work or in certain regions, it may be either more or less restrictive than needed. For example, where aesthetics are important, more restrictive limits may be considered regarding impurities that would stain the concrete surface.

SPECIFICATIONS FOR SUPPLYING AND PLACING BACKFILL

Base Course Mix Design MRB-A201 At the request of the Contractor. Fine Aggregate Only: Organic Impurities CSA A23.2-7A ASTM C 40 As directed by the Engineer. Surface Moisture CSA A23.2-11A ASTM C 70 Relative Density and Absorption CSA A23.2