Simple procedure to test the compressive strength of mortar. 1. For the test of compressive strength of mortar, we need to prepare the mortar cubes. 2. First mortar is prepared in same condition, workmanship and material ratio as it is used in actual construction. 3. They are filled in 7.06 cm moulds and damp-cured for … Read more How to preform Compressive Strength test for mortar ?
Water Cement Ratio means the ratio of the weight of water to the weight of cement use in concrete mixture. Or in easy words it is the amount of water required in the cement concrete mixture. As we know that water cement ratio directly affects the strength of concrete. So, by being in limits of … Read more How to calculate the water-cement ratio for concrete?
MAGNETIC COMPASS The magnetic compass gives directly the magnetic bearings of lines. The bearings may either be measured in the W С.В.sy stem or in Q.B system depending upon the form of the compass used. The bearings so measured are entirely independent on any other measurement. The general principle of all magnetic com pass depends … Read more Detail About Magnetic Compass, Prismatic Compass and Surveyor Compass
Tiles Tiles are thin slabs used for covering roofs, for flooring or for making drains and may be formed of brick earth burnt in kilns or concrete. Brick earth used for manufacturing bricks tiles is more pure and is prepared more thoroughly than the one used for manufacturing bricks. Tiles, being thinner require careful burning. … Read more Tiles, Earthen Ware and Glazing
This gives the superficial evaluation of the material i.e. shape and size. Density The terms density is the mass per unit volume of material in its natural state. The properties of material such as strength, stress and other mechanical, thermal and electrical properties of material etc are greatly influenced by its density. Simply, It is … Read more Evaluation of the material (Dimensions)
Preservation Of TIMBER is the art of treating the timber with some chemical so as to increase its life, makes it more durable and to protect the timber from attack of fungi, insects etc. Methods of Preservation Tarring: Applying a coat of tar or tar mixed with pitch on a timber. It is generally used … Read more Methods for Preservation Of TIMBER
A hand level is a small levelling instrument which is held in hand when used for levelling. It consists of a rectangular tube, 100 to 150 mm long. A small level tube is mounted on the top of the tube. There is a small opening in the tube immediately below the level tube. The lower … Read more What is Hand Level and its use.