# specific gravity of concret (PDF) Stone Dust in Concrete: Effect on Compressive StrengthSpecific Gravity . 2.60 . ... Concrete specimens were tested after 7 and 28 d moist curing. It has been observed that 40% replacement of fine aggregate with stone dust is adaptable.What Is Specific Gravity Cement | Why We Calculate ...May 30, 2020· Specific gravity is generally defined as the ratio between the mass of a given volume of material and mass of an equal volume of water. One of the methods of determining the specific gravity of cement is by the use of a liquid such as water-free kerosene, which does not react with cement.

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## Detailed introduction

Silica fume - WikipediaSilica fume is an ultrafine material with spherical particles less than 1 μm in diameter, the average being about 0.15 μm. This makes it approximately 100 times smaller than the average cement particle. The bulk density of silica fume depends on the degree of densification in the silo and varies from 130 (undensified) to 600 kg/m 3.The specific gravity of silica fume is generally in the ...Density of Concrete - The Physics Factbook"The density of normal concrete is 2400 kg/m 3 and the density of lightweight concrete is 1750 kg/m 3: 1750–2400 kg/m 3: Brooklyn Public Library Files; 1999 "Typical density of concrete (2.3 g/cm 3)" 2300 kg/m 3: McGraw-Hill Encyclopedia of Science and Technology.Specific Gravity of Cement - Detailed Explanation – CivilologyIf the specific gravity of cement is greater than 3.19 then, the cement is either not minced finely as per the industry standard or it has more moisture content which will affect the mix and bonding. This is why you find lots of chunks while mixing old stock cement for concrete. How to calculate cement specific gravity?

### Silica fume - Wikipedia

Silica fume is an ultrafine material with spherical particles less than 1 μm in diameter, the average being about 0.15 μm. This makes it approximately 100 times smaller than the average cement particle. The bulk density of silica fume depends on the degree of densification in the silo and varies from 130 (undensified) to 600 kg/m 3.The specific gravity of silica fume is generally in the ...What is the specific gravity of concrete? - QuoraThose specific gravity can also be termed as appearant specific gravity of concrete. So the normal concrete could have specific gravity of 2.3 to 2.5 depending on ingredients used. In process of specific gravity calculation we do find tConcrete Mix Design Calculations•Bulk specific gravity (SSD): Used to determine the "solid volume" (absolute volume) of a material going into concrete It is determined b yygg submerging the material in water for 24 hours in order to fill any permeable voids 6 Specific Gravity Water: Specific Gravity = 1.00 Stone: Specific Gravity = 2.70 Same Volume, but 2.70 Times More MassAggregate: Mechanical Properties of Aggregate | Concrete ...Actually there are several types of specific gravity. In concrete technology specific gravity is used for the calculation of quantities of ingre­dients. Usually the specific gravity of most aggregates varies between 2.6 and 2.8. Specific gravity of certain materials as per concrete hand book CA-1 Bombay may be assumed as shown in Table 4.9.Effect of specific gravity of coarse aggregate on ...Jul 18, 2013· This study presents results on the influence of specific gravity of coarse aggregate on the interfacial transition zone, permeability, and strength of concrete. The aggregate variables studied in this work were specific density (0·85, 1·20, 1·80, 2·65) and water / cement ratio (0·25, 0·40, 0·55, 0·70).Influence of Specific Gravity on Weight of Proportions of ...The specific gravity of aggregates is commonly ranging from 2.6 to 3.0. Specific gravity is used to separate deleterious particles, lighter than other particles, from good aggregates. It is used in calculating the solid volume of aggregates in concrete mix. Determination .HOW AGGREGATE PROPERTIES AFFECTS CONCRETE PROPERTIES ...Feb 15, 2019· Specific gravity, a low specified gravity indicates to high porosity, which results in poor durability and low strength. The concrete density is greatly depending on the specific gravity. A porous nature (i.e. those which increase in weight exceeding 10% of dry weight after immersion for 24 hours) should not be permitted, unless specified.Aggregate: Mechanical Properties of Aggregate | Concrete ...In concrete technology specific gravity is used for the calculation of quantities of ingre­dients. Usually the specific gravity of most aggregates varies between 2.6 and 2.8. Specific gravity of certain materials as per concrete hand book CA-1 Bombay may be assumed as shown in Table 4.9.

### Classification of Aggregates

Lightweight aggregates: As mentioned in the body of this paper, lightweight concrete contains aggregate that is natural or synthetic which weighs less than 1100 kg/m 3.The lightweight is due to the cellular or high internal porous microstructure, which gives this type of aggregate a low bulk specific gravity.Concrete Density - an overview | ScienceDirect TopicsWhen using barite aggregate, the density of concrete is about 3400 kg/m 3, which is 45% higher than that of ordinary concrete; with magnetite the density is equal to 3500 kg/m 3 —by 50% higher than that of normal concrete and with hematite aggregate the density is approximately 3600 kg/m 3 —53% higher than normal concrete.Bulk Specific Gravity - Pavement InteractiveTypical values for bulk specific gravity range from 2.200 to 2.500 depending upon the bulk specific gravity of the aggregate, the asphalt binder content, and the amount of compaction. Absorption should typically be below 2 percent. If more than 2 percent water by volume is absorbed by the sample then this method is not appropriate.Specific Gravity Test Of Cement - Procedure, Result ...It generally ranges from 1 to 100. Water has the specific gravity around 1and If the specific gravity of other material is greater than 1, then it sinks in water. If the specific gravity of material less than 1 it floats in water. Therefore, the specific gravity of any material is an important property to know. So that we can use it in a proper ...what is specific gravity of concrete? - Civil Engineering ...Jul 28, 2015· The ratio of the mass of a solid or liquid to the mass of an equal volume of water, specific gravity of cement is 2.4, specific gravity of Sand is 2.6, specific gravity of Aggregate is 2.4 .

### Specific Gravity Of Cement Test - How To Calculate ...

As per industry, the acceptable value of specific gravity of cement is up to 3.19. But if the value is greater than 3.19 it means cement is containing greater amount of moisture content which will affect the workability and strength of concrete.Specific Gravity of Cement l Value, Importance & Test ...According to the Portland Cement Association(PCA), Design and Control of Concrete Mixtures, 1988, the specific gravity of the Ordinary Portland cement is approximately equal to 3.15 g/cc. While the specific gravity value of the Portland Pozzolana cement is around 2.90 g/cc. REFERENCE MATERIAL FOR SPECIFIC GRAVITY DETERMINATION OF CEMENTSpecific Gravity of cement or Desnsity of cement | Le ...Sep 10, 2017· Specific Gravity of Cement Formula:-We calculate Specific gravity to know the behaviour of the material in water. Every material has its own specific gravity, and it usually ranges between 0.1 – 100. If the specific gravity of the material is less than 1, then that material floats in water. If the material has a specific gravity greater than ...

### What Is Specific Gravity Cement | Why We Calculate ...

Specific gravity is generally defined as the ratio between the mass of a given volume of material and mass of an equal volume of water. One of the methods of determining the specific gravity of cement is by the use of a liquid such as water-free kerosene, which does not react with cement.Solved: This Is A Concrete Mix Design Example. Specific Gr ...Specific Gravity Dry Unit Weight AC (%) MC (%) Cement 3.15 Water 1.00 Coarse Aggregate (CA) 2.54 BSG(OD) 90.2 lb/ft3 1.2 0.7 Fine Aggregate (FA) 2.5 BSG(OD) 1.45 1 . Given conditions: Water-cementitious ratio, W/C = 0.5 Bulk volume of coarse aggregate per unit volume (1 yd3) of concrete = 0.61 4.5 % Air 7 sack mix with 20% Fly ash (BSGFly ash ...SPECIFIC GRAVITY OF COARSE AGGREGATE AASHTO T 85Specific Gravity is the ratio of the weight of a given volume of aggregate to the weight of an equal volume of water. Water, at a temperature of 73.4°F (23°C) has a specific gravity of 1. Specific Gravity is important for several reasons. Some deleterious particles are lighter than the good aggregates.REINFORCED CONCRETEReinforced concrete (RC) is a structural composite made of plain concrete and reinforcing steel. Advantages of RC as a Construction Material ... Material Specific Bulk Solid Gravity Density Density (lb/ft3)___ Cement 3.1 94 193 (3.1x62.4) Sand 2.6 100 162 (2.6x62.4) Stone 2.6 95 162 (2.6x62.4) ...

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