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Section 30 Recycled Concrete Base

wear and soundness specified for coarse aggregate. Recycled concrete aggregate shall not be used in locations with high sulfate content soils (no more than 1...

Behavior of High Performance Concrete Exposed to ... - ResearchGate

attack in comparison with traditional concrete. Four sulfate contents (0.5, 1.5, 2.0, and 2.5 %) in fine aggregate were studied. Metakaolin was used as a...

Properties and testing of concrete materials - SlideShare

Oct 16, 2014 ... 8- Presence of Organic Impurities in Fine Aggregates. .... "Methods for determination of sulphate content"(BS 812-118) For chloride ions:...

ba 92/07 - Standards for Highways

May 1, 2007 ... coarse natural aggregate in structural grade concrete. INSTRUCTIONS ..... measuring the chloride content of concrete given in. BS 1881-124...

Standard Test Procedures: AASHTO / ASTM

Aug 1, 2014 ... Determining the Sulfate Ion Content in Water or Water-Soluble Sulfate. Ion Content in ...... Organic Impurities in Fine Aggregate for Concrete.

Aggregate Testing - National Ready Mixed Concrete Association

ASTM C87, Organic Impurities in Fine Aggregates on Strength. ASTM C88, Soundness of Aggregates by use of Sodium Sulfate or Magnesium Sulfate.

Chemical Testing - AL HAI & AL MUKADDAM FOR ...

22, Water Soluble Chloride Salts in Aggregate. 23, Acid-Soluble Material in Fine Aggregate. 24, Determining the Cement content of freshly mixed Concrete.

BS EN 12620:2013 Aggregates for concrete - BSI Shop

May 31, 2013 ... BS EN 12620:2013 Aggregates for concrete. ... Water soluble sulfate content of recycled aggregates - Chlorides - Carbonate content for...

Recycled Concrete Aggregates Make Cents - the Texas Department ...

aggregates (RCA) provide substantial savings to TxDOT and taxpayers. ... gravity, higher water absorption, higher sulfate soundness loss and higher Los ... RCA can also be used as a coarse aggregate in Item 421, "Hydraulic Cement Concrete," as long as it ... When used in concrete, stockpile moisture content is critical.

Behavior of High Performance Concrete Exposed to Internal Sulfate ...

Behavior of High Performance Concrete Exposed to Internal Sulfate Attack ... Four sulfate contents (0.5, 1.5, 2.0, and 2.5 %) in fine aggregate were studied.

4 Aggregate Specifications and Requirements

sodium sulfate test requires the aggregate to be immersed in a sodium sulfate ... places a restriction for fine aggregate for use in portland cement concrete and ... 4.75 mm mixtures is required to have an acid insoluble content of not less than.

Types and Causes of Concrete Deterioration - The Portland Cement ...

The risk of corrosion increases as the chloride content of concrete increases. ..... of concrete wears, the fine and coarse aggregate are exposed and abrasion...

Permissible Levels of Chlorides and Sulfates in Aggregate ...

Feb 1, 1996 ... The report lists chloride and sulfate content, but I don't know how to evaluate these ... What if both the coarse and fine aggregates contain chloride? ... For U.S. designers, call on your friendly cement chemist for advice. Mine is:...

SiteManager Forms - Texas Department of Transportation

... highway construction contracts. Date, No. Title, Format. 03/15.

Effects of Substances on Concrete and Guide to Protective Treatments

Suitable aggregate—quality aggregate is not prone to freeze- .... example, by evaluating the sulfate content of the concrete. Chemical ... of coarse stone with.

Guide to the Specification and Use of Manufactured Sand in Concrete

the uses of cement, concrete and aggregates by advancing knowledge ... 3 SPECIFICATION FOR MANUFACTURED SAND AS CONCRETE FINE AGGREGATE. Scope. 11 ...... Sulfates The sulfate ion content of manufactured sand shall be...

Effect of Magnesium Sulphate on Self-Compacting Concrete ...

Sep 25, 2013 ... The sulphate attack for the concrete specimens was assessed by the ... (2)Fine aggregate content which was fixed at 55% of the mortar volume.

NJDOT 2007 Specifications - Division 900 Materials

Chloride content, AASHTO T 260, 0.06 .... For all classes of concrete and mortar, use fine aggregate that is washed and sized through a sand classifier plant and...

Reclaimed Concrete Material - Federal Highway Administration

Workability: If fine RCM aggregates are used, concrete workability decreases (due to the ... Limits on chloride and sulfate contents of concrete materials are well...

Material Testing | Al Arabiya Laboratories

Concrete. Water absorption of hollow blocks; Water absorption of paving blocks ... Organic impurities in fine aggregate for concrete; Chloride content; Clay lumps...

Category:1005 Aggregate for Concrete - Engineering Policy Guide

The percentage of lightweight particles in fine aggregate shall ... chloride and water of having a specific gravity of 2.00 ± 0.01.

Aggregates for Concrete, Chapter 5 - Civil Engineering

Fine aggregate content is usually 35% to 45% by mass or volume of the total ... The important characteristics of aggregates for concrete are ... Iron sulfide argillite...

Limestone Powder Use in Cement and Concrete - University of ...

According to Lea [8] the use of limestone as a concrete aggregate has ... early strength, the control of bleeding in concrete with low cement content and the ... fly ash, slag, limestone and silicious stone for part of fine aggregate in concrete and the ... [19] reported the diffusion of chloride ions in mortars as influenced by the.

Crushed Returned Concrete as Aggregates for New Concrete

Sep 13, 2007 ... Appropriate Test to Measure Air Content of Concrete Containing CCA . .... recommended that fine recycled concrete aggregate (FRCA) levels remain at or ... chloride-ion penetration, concrete using RCA could be regarded as...

Reclaimed Concrete Material - Recycled Materials Resource Center

One alternative to using aggregate is recycled concrete aggregate. ..... Workability : If fine RCM aggregates are used, concrete workability decreases .... Limits on chloride and sulfate contents of concrete materials are well established.

Cement Standards and Concrete Standards - ASTM International

These ingredients are mixed with water to create concrete which is used as a primary ... to Inhibit Chloride-Induced Corrosion of Reinforcing Steel in Concrete .... Standard Test Method for Organic Impurities in Fine Aggregates for Concrete.

STANDARD METHODS OF TESTS - Nebraska Department of Roads

Jan 1, 2014 ... Organic Impurities in Fine Aggregate for Concrete. AASHTO T 30 ... Determination of Chloride Content in Cement Cores. NDR T 290.

EDUCATIONAL GUIDE TO AGGREGATES - Cemex

Fine aggregate (sand) is the main constituent of masonry mortars and renders. Some ... aggregates for concrete, mortar and grout. Where they are .... aggregates, testing is undertaken for chloride content, sulfate content, loss on ignition and.

Behavior of High Performance Concrete Exposed to Internal Sulfate ...

Four sulfate contents (0.5, 1.5, 2.0, and 2.5 %) in fine aggregate were studied. Metakaolin was used as a pozzolanic material, which has proved itself as a good...

Part 3, Item P-219 Recycled Concrete Aggregate Base Course, of ...

Sep 30, 2011 ... If necessary, fine aggregate may be added to produce the correct ... aggregate shall not be used in locations with high sulfate content soils (no...