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Report Spacific Gravity

 Essay about Report Spacific Gravity

Faculty of Engineering

City Engineering Office

Building material lab

ENCE 214

Research No . several

Absorption & Specific gravity

Group: (C)

* Taha Qadi 1100728 * Mohammad Ayaydah 1110854

* Sundos Othman 1110956 * Yazan Bodair 1110153

Instructor: Dr . Mostafa Mousa

Date: 6-3-2013

Material

Objective ………………………………………………………………………….. (3)

Introduction ……………………………………………………………….. …….. (3)

Theory………………………………………………………………………. …. ….. (4)

Instruments ……………………………………………………………………….. (5)

Procedure……………………………………………………………………. ……. (5)

Data and calculations……………………………………………………………. (8)

Conclusion………………………………………………………………. ………... (9)

Anatomist use …………………………………………………………………(9)

Sources ………………………………………………………………. …………(9)

* Aim: -

This test out is intended to determine the specific gravity and ingestion of rough and great aggregate examples.

* Introduction: -

The measured drinking water absorption level and certain gravity of aggregates can be routinely employed in design and construction of pavement elements and set ups worldwide. A chance to measure the water absorption and specific the law of gravity of get worse materials with high level of accuracy and repeatability very quickly is critical to get engineers and practitioners considering the houses of soils and aggregates.

Specific gravity is important for a number of reasons. Several deleterious debris are brighter than the great aggregate. Monitoring specific the law of gravity can sometimes indicate a change in aggregate vitamin or physical real estate of the materials or conceivable contamination. As an example, if a quarry operation regularly monitors the actual gravity of its result aggregate, an alteration in certain gravity over and above that normally expected could indicate the quarrying features moved into a fresh rock development with significantly different nutrient or physical real estate. Differences in specific gravity can be used to separate the bad particles through the good by using a heavy multimedia liquid.

The combination specific gravity test is employed to determine the specific the law of gravity of an get worse sample simply by determining precisely the fat of a presented volume of aggregate to the excess weight of an similar volume of normal water. It is similar in mother nature to the fine aggregate certain gravity evaluation

Aggregate particular gravity is needed to determine weight-to-volume relationships and calculate several volume-related volumes such as voids in vitamin aggregate (VMA), and voids filled simply by asphalt (VFA). Absorption can be used as an indicator of aggregate strength as well as the amount of asphalt binding it is likely to absorb.

* Theory: -

5. Specific the law of gravity is a way of measuring a material's density (mass per product volume) as compared with the thickness of water at 73. 4В°F (23В°C). * Consumption: The increase in mass as a result of water inside the pores of the material.

* Bulk Specific Gravity (also referred to as Bulk Dry out Specific Gravity): The ratio of the weight in air of the unit volume of aggregate at a mentioned temperature for the weight in air associated with an equal amount of gas-free distilled water on the stated temp. * Mass SSD Specific Gravity: Exactely the fat in surroundings of a device volume of combination, including the excess weight of drinking water within the voids filled towards the extent achieved by submerging in water for approximately 15 several hours, to the excess weight in surroundings of an equivalent volume of gas-free distilled normal water at the stated emperature. 2. Apparent Specific Gravity: The ratio of the fat in air of a product volume of the impermeable area of aggregate (does not are the permeable skin pores in aggregate) to the pounds in atmosphere of an equal volume of gas-free distilled normal water at the stated temperature.

5. The great aggregate particular gravity test out measures good aggregate excess weight under three different test conditions:...

References:: -

1 . HMA production manual

2 . AASHTO Big t 84

a few. http://pavementinteractive.org/index.php?title=Coarse_Aggregate_Specific_Gravity#Typical_Values

4. http://training.ce.washington.edu/VSL/aggregate_tests/fasg/fasg_overview.htm

a few. http://www.engineeringtoolbox.com/density-specific-weight-gravity-d_290.html

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