organic impurities in fine aggregates for concrete

Standard Test Method for Organic Impurities in Fine ...

C33 Specification for Concrete Aggregates C87 Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar C125 Terminology Relating to Concrete and Concrete Ag-gregates C702 Practice for Reducing Samples of Aggregate to Test-ing Size D75 Practice for Sampling Aggregates D1544 Test Method for Color of Transparent Liquids

NRMCA Research & Engineering Department

Research Laboratory. Testing . ... Unit Weight and Voids in Aggregate: ASTM C40: Organic Impurities in Fine Aggregates for Concrete: ASTM C70: Surface Moisture in Fine Aggregate: ASTM C87: Organic Impurities in Fine Aggregates on Strength, Effects of ... Staining Materials in Lightweight Concrete Aggregates: ASTM C1252: Void Content ...

AASHTO T 21M/T 21 - Standard Method of Test for Organic ...

Standard Method of Test for Organic Impurities in Fine Aggregates for Concrete This test method covers two procedures for an approximate determination of the presence of injurious organic compounds in fine aggregates that are to be used in hydraulic cement mortar or concrete....

METHOD OF TEST FOR ORGANIC IMPURITIES IN CONCRETE …

an approximate determination of the presence of injurious organic compounds in natural sands, which are to be used in cement mortar or concrete. B. REFERENCES AASHTO T 21 - Organic Impurities in Fine Aggregates for Concrete C. MATERIALS 1. Glass bottles - approximately 350 mL or 470 mL nominal capacity colorless

CHAPTER 4 AGGREGATES - Civil Engineering Department

The organic impurities may interfere with the process of hydration of cement. This affects the rate of gaining strength. b) Clay and Other Fine Materials: • Found as surface coatings which interfere with the bond between aggregate and the cement paste. Affects the strength and durability of concrete. Other types of fine material:

5 Aggregate Specifications and Requirements - IN.gov

Organic impurities are the only concern in fine aggregates. Section 904.02 places a restriction for fine aggregate for use in portland cement concrete and mortar. No restrictions are placed on organic impurities in fine aggregate for use in other types of construction. The limitations on the amount of organic impurities allowed in fine

C87-Effect of Organic Impurities in Fine Aggregate on Strength

Standard Test Method for Effect of Organic Impurities in Fine Aggregate on Strength of Mortar1. This standard is issued under the fixed designation C 87; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

C40-Organic Impurities in Fine Aggregates for Concrete

Highway and Transportation Officials Standard AASHTO No.: T 21. Standard Test Method for Organic Impurities in Fine Aggregates for Concrete1. This standard is issued under the fixed designation C 40; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

ELE International - Organic Impurities in Fine Aggregate

Organic Impurities in Fine Aggregate If aggregate contains organic impurities it may not be suitable for inclusion in concrete. Organic impurities, usually tannic acid and its derivatives, may interfere with the chemical reactions of hydration.

ASTM C40-04 Standard Test Method for Organic Impurities in ...

Organic Impurities in Fine Aggregates for Concrete1 This standard is issued under the fixed designation C 40; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

Concrete - ASTM Equipment Finder - humboldtmfg.com

Testing equipment needed for performing concrete testing are listed on this page by ASTM standards. ... Organic Impurities in Fine Aggregates for Concrete. ASTM C70. Surface Moisture in Fine Aggregate. ASTM C78. Flexural Strength of Concrete. ASTM C87. Effect of Organic Impurities in Fine Aggregate on Strength of Mortar. ASTM C88. Soundness of ...

AASHTO T 21 : Standard Method of Test for Organic ...

This test method covers two procedures for an approximate determination of the presence of injurious organic compounds in fine aggregates that are to be used in hydraulic cement mortar or concrete. One procedure uses a standard color solution and the other uses a glass color standard.

Manual of Aggregate Quality Test Procedures

• ITP 2, Sampling of Aggregates • ITP 71, Effect of Organic Impurities in Fine Aggregate on Strength of Mortar • ITP 248, Reducing Samples of Aggregate to Testing Size 2.2 AASHTO Standards: • M 6, Fine Aggregate for Hydraulic Cement Concrete • R 16, Regulatory Information for Chemicals Used in AASHTO Tests 2.3 ASTM Standards:

CCANZ - Impurities and Other Harmful Materials

Besides reactive minerals, aggregates may contain other impurities, such as organic matter, which are harmful to concrete. Organic matter, such as that derived from decaying vegetation, is capable of delaying setting and hardening of concrete. It is more likely to be found in fine than in coarse aggregate and may be detected by the test set out ...

Basic Aggregates Testing Technician | cttp | University of ...

AASHTO T 11: Materials Finer that 75-mm (No. 200) Sieve in Mineral Aggregates by Washing AASHTO T 21: Organic Impurities in Fine Aggregates for Concrete AASHTO T 27: Sieve Analysis of Fine and Coarse Aggregates AAHSTO T 84: Specific Gravity and Absorption of Fine Aggregate

Concrete Laboratory Testing Technician - Level 1

C40–04—Organic Impurities in Fine Aggregate for Concrete Certification Requirements: There is no actual examination or application process for ACI Concrete Laboratory Testing Technician—Level 1.

Organic Impurities Test Set - Gilson Co.

Deleterious organic materials in fine aggregates can be easily detected with the Organic Impurities Test, a simple, widely-used test. Samples are mixed in a special graduated colorless glass bottle with a 3% sodium hydroxide solution, then allowed to stand for 24 hours.

Organic Impurities in Fine Aggregates for Concrete - Geocomp

Organic Impurities in Fine Aggregates for Concrete Reference Number AASHTO T 21 Material. Aggregate. Test Property. Organic content. Description of Test. The fine aggregate is placed into a glass bottle with a 3% sodium hydroxide solution. The mixture is …

Aggregates for Use In Concrete

Aggregates for Use In Concrete 2 Learning Objective ... Source: Table 1 Limits for Deleterious Substances in Fine Aggregate for Concrete, ASTM C 33. ... Organic Impurities C 40 (fine aggregate) 3.0% Sodium Hydroxide Solution What is the effect on Concrete if negative result?

HOW TO CHECK IMPURITIES IN SAND ON SITE? - CivilBlog.Org

Organic impurities in sand may be either due to decayed vegetation, humus, coal particles, or organic and industrial wastes depending upon the source of the sand. It is generally considered that organic impurities retard the setting of cement and thus have deleterious effect on the strength of concrete …

C40-99 Standard Test Method for Organic Impurities in Fine ...

Designation: C 40 – 99 American Association State Highway and Transportation Officials Standard AASHTO No.: T 21 Standard Test Method for Organic Impurities in Fine Aggregates for Concrete 1 This standard is issued under the fixed designation C 40; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.

Organic Impurities in Fine Aggregate for Concrete

ORGANIC IMPURITIES IN FINE AGGREGATE FOR CONCRETE TXDOT DESIGNATION: TEX-408-A CONSTRUCTION DIVISION 2 – 2 EFFECTIVE DATE: DECEMBER 2016 4.4 Bring the solution level up to the 207 mL (7 fl. oz.) mark, stopper, and shake again. 4.5 Allow the bottle and contents to stand undisturbed for 24 hours.

ASTM C40/C40M - Standard Test Method for Organic ...

scope: This test method covers two procedures for an approximate determination of the presence of injurious organic impurities in fine aggregates that are to be used in hydraulic cement mortar or concrete.

Standard Test Method for Organic Impurities in Fine ...

This test method covers two procedures for an approximate determination of the presence of injurious organic impurities in fine aggregates that are to be used in hydraulic cement mortar or concrete. One procedure uses a standard color solution and the other uses a glass color standard.