What is a concrete test report?
What is a Concrete Test Report? A Document that records data obtained from an experiment of evaluation in an organized manner, describes the environmental or operating conditions, and shows the comparison of test results with test objectives.
What is aggregate testing?
Aggregate tests
- Crushing test.
- Abrasion test.
- Impact test.
- Soundness test.
- Shape test.
- Specific gravity and water absorption test.
- Bitumen adhesion test.
What is the ASTM standard for concrete?
The ASTM C39 test standard for compressive strength of concrete cylinders requires numerous checks for dimensions of the concrete cylinders and alignment during testing. The manual instructs and illustrates acceptable practices to properly perform these measurements.
Why is concrete testing important?
There are several reasons why testing of hardened concrete is important: (1) test can investigate the fundamental physical behavior of concrete such as elastic properties and strength characteristics; (2) When physical laws are not fully understood testing can simulate expected conditions to evaluate performance; (3) …
What are the different test on concrete?
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 grading of aggregates?
Grading of aggregates are determination of particle size distribution of aggregates. Grading of aggregates is an important factor for concrete mix design. These affect the concrete strength as well as durability. Proper grading is important for concrete construction.
What are aggregates in concrete?
Concrete aggregates are composed of geological materials such as gravel, sand and crushed rock. The size of the particles determines whether it is a coarse aggregate (e.g. gravel) or a fine aggregate (e.g. sand). The resulting concrete can be used in its natural state or crushed, according to its use and application.
What is the size of aggregate?
– Coarse aggregates are particulates that are greater than 4.75mm. The usual range employed is between 9.5mm and 37.5mm in diameter. – Fine aggregates are usually sand or crushed stone that are less than 9.55mm in diameter. Typically the most common size of aggregate used in construction is 20mm.
What is the ratio of concrete mixture?
The safest bet for any concrete mix is four-two-one: four parts crushed rock; two parts sand; and one part cement. The four-two-one mix, obviously, has seven parts. Conveniently, when mixing concrete, the ratio can be mixed on any range of scales.
What is ASTM 270?
The ASTM Standard C270 (Mortar for Unit Masonry) provides the basis for specifying cement-lime mortars. This specification provides the basis for five different mortar types (Type K is listed in section X3 of the appendix) depending on the strength of mortar needed for an application.