Field Test of Cement done by Civil Engineer at Construction Site

As we all know that testing of any building material prior to construction is very important in order to achieve strength and durability. Cement is one preliminary construction material that is used to prepare concrete. At the construction, it is not possible to perform all laboratory tests because once you do laboratory it will take time to get and conform results as per requirement, so in that particular condition, the field test is adopted to check the quality of material in a very short period of time. In this article, you will get to know all the field tests of…

Quality Control of Bricks, Stones, Coarse Aggregate, Fine Aggregates (Sand), Water, and Blocks.

The material used for construction shall be tested and checked before the commencement of work. Material to be used for work shall be confirmed to the specification mentioned on structural drawings. The Source of material shall be checked or verified by the engineers before the work has to be started. It is very important to check the quality of source material in order to improve the strength and durability of structures. Bricks Following points to be remember for the quality of Bricks. Burnt clay shall be confirmed to the requirement of IS: 1077 code. Bricks shall be free from Cracks.…

7 factors that affect the workability of Concrete

The ease with which concrete is placed, compacted, transported, and finished without segregate is known as workability of Concrete. Concrete has good workability gives good strength and durability. It is the property of fresh concrete. The factors that affect the workabilities of concrete, such as Water content, Mix proportions (Aggregate /cement ration), Size of aggregates, the shape of aggregates, the surface texture of aggregates, grading of aggregates and use of admixtures. Factors Affecting Workability of Concrete Water content The workability of concrete is directly proportional to water content. As water content increases, workability also increases. Increase in water content in…

11 Important Points to Remember For Civil Engineer About Coarse Aggregates.

In this article, I have explained 11 Important points About Coarse Aggregate. It comprises of Definition of Aggregates, Sieve used for Aggregates, Fineness Modulus, Specific Aggregates, Types, and Field Test of Coarse Aggregates. The following are the 11 Important Points to Remember for Civil Engineer about Aggregates. Definition of Aggregates. Coarse Aggregates are the particles which are retained on 4.75 mm sieve. Coarse Aggregates are larger in size as compared to fine aggregates. It obtained by the processing of igneous rocks such as pumice, scoria, and tuff. Some of the most common natural aggregates are silica sand, gravel, crushed lightweight…

15 Points to Remember For Civil Engineer about Fine Aggregate or Sand

In this article, I have explained 15 important points to be remembered For Civil Engineer regarding Fine Aggregate. It comprises of the size of coarse Grained soil, Fine grain soil, specific Gravity, Impurities available in sand, Field Test, Sieves, Test of sand, and Characteristics of good quality of Fine Aggregates. Following are the 15 Important points about Fine Aggregates. 1.  Different sizes of Coarse Grained soil Boulders                Greater than 300 mm. Cobble                    80 mm – 300 mm. Gravel                    4.75 mm – 80 mm. Sand                       75 micron – 4.75 micron. 2. Size of Fine Grained soil  Silt                         2 micron – 75 micron. Clay                        less…

Bricks: Properties Composition and Composition of Good Quality of Bricks

Bricks are one of the building material which is used to construct the wall, foundation, etc. It is widely used at present in Reinforced concrete structures because of its good compressive strength, durability, low cost, and availability, etc. It is manufactured by molding clay in rectangular blocks of uniform size and kept for drying and in the end, burnt all the blocks. Standard Size of Modular Bricks without mortar = 190 mm x 90 mm x 90 mm. Size of Modular bricks with 10 mm thick mortar = 200 mm x 100 mm x 100 mm. Properties/ Characteristics of Good…

12 Important Points to Remember For Civil Engineer About Cement

Raw material used for manufacturing of cement    Limestone (Caco3)    Sand (Sio2)    Stale clay (SiO2, Al2O3, Fe2O3) Chemical Composition    Oxide Compound (in percentage) Lime (Cao): 60-65% Silica (SiO2): 17-25 % Alumina (Al2O3): 3-8% Iron (Fe2O3): 3- 8% Magnesia (MgO): 0.5-4%      Baogue Compound (in percentage   Tricalcium Silicate: 25-40% Dia calcium Silicate: 25-40%  Tricalcium Silicate: 5-11%  Tetra calcium Alumina Ferrite: 8-14% Functions of Oxide compound Lime (Cao): strength & soundness. Silica (Sio2): strength. Alumina (Al2O3): Quick setting Iron Oxide (Fe2O3): Color to cement. Function of Baogue Compound Calcium Silicate (C3S): Early strength Diacalcium Silicate (C2S): Slow heat…

Sand: Types of Sand, Properties of Good Quality of Sand

What is sand? Types of Sand on the basis of Source, Geological origin, Sieve analysis. Sand is a granular material that occurs from the disintegration of rocks having a particle size smaller than gravel but having a higher size than silt and used as a construction material for the preparation of concrete, mortar, etc. Types of Sand on the basis of source There is a different type of sand that is used for construction work. Few are explained below: Pit Sand It is obtained by forming pits into soils from quarries. Fine Aggregate is free from salts and it is…