What are the test are done for coarse aggregate?

Durability of coarse aggregate is normally evaluated in the sulfate soundness test and water absorption tests, and by measuring resistance to impact in the Los Angeles abrasion and impact test. These tests suffer from some disadvantages: poor precision and inadequate correlation with field performance.

How do you test fine aggregates?

Fineness modulus is generally used to get an idea of how coarse or fine the aggregate is. More fineness modulus value indicates that the aggregate is coarser and small value of fineness modulus indicates that the aggregate is finer. Record the weight of aggregate retained on each sieve.

What are the various test done on an aggregate discuss each test?

Aggregates are tested for strength, toughness, hardness, shape, and water absorption. In order to decide the suitability of the aggregate for use in pavement construction, following tests are carried out: Crushing test. Abrasion test.

What is the difference between fine aggregate and coarse aggregate?

Fine aggregates are small size filler materials in construction. Coarse aggregates are larger size filler materials in construction. Fine aggregates are the particles that pass through 4.75 mm sieve and retain on 0.075 mm sieve. Coarse aggregates are the particles that retain on 4.75 mm sieve.

What are the various tests for cement?

The following tests are conducted on cement in the laboratory are as follows:

• Fineness Test.
• Consistency Test.
• Setting Time Test.
• Strength Test.
• Soundness Test.
• Heat of Hydration Test.
• Tensile Strength Test.
• Chemical Composition Test.

What is the soundness test?

Soundness is the percentage loss of material from an aggregate blend during the sodium or magnesium sulfate soundness test. This test, which is specified in ASTM C88 and AASHTO T104, estimates the resistance of aggregate to in-service weathering. It can be performed on both coarse and fine aggregate.

Which of the following test is recommended on coarse aggregates only?

Durability of coarse aggregate is normally evaluated in the sulfate soundness test and water absorption tests, and by measuring resistance to impact in the Los Angeles abrasion and impact test. The likely performance of aggregates in granular base is best measured by the micro-Deval test and water absorption.

Why should we test a fine aggregate sample for water absorption?

Specific gravity test of aggregates is done to measure the strength or quality of the material while water absorption test determines the water holding capacity of the coarse and fine aggregates. The main objective of these test is to, To measure the strength or quality of the material.

What are the various tests carried on concrete?

What are the types of fine aggregate?

Types of Fine Aggregate

• Coral Sand.
• Glass Sand.
• Immature Sand.
• Gypsum Sand.
• Ooid Sand.
• Silica Sand.
• Pit Sand.
• River Sand.

What are the different types of Aggregate tests conducted?

Following are the different types of aggregate tests conducted to ascertain the suitability of aggregates: 01. Crushing Test on Aggregates 02. Abrasion Test on Aggregates 03. Impact Test on Aggregates 04. Soundness Test on Aggregates 05. Shape Test on Aggregates 06. Specific Gravity and Water Absorption Test on Aggregates 07.

What is the difference between fine aggregates and coarse aggregates?

The water absorption of the fine aggregate and the water absorption of the coarse aggregates may differ significantly, particularly when they are not coming from the same source or have not been stored in the same conditions.

How to decide the suitability of aggregate for use in concrete/pavement construction?

In order to decide the suitability of the aggregate for using in concrete/pavement construction, following tests are carried out: The aggregate crushing value test indicates the strength of aggregate which is the most essential property of coarse aggregate.

What is the water absorption value of concrete aggregates?

As stated above aggregates with a high water absorption value (greater than around 2\%) can create problems controlling the moisture content of the aggregates in practice. This leads to variability in aggregate moisture content which can make it difficult for the correct water content of the concrete mix to be determined.