Civil Diary Online

Some vital checklist for RCC slabs and beams 🔵 RCC slabs and beams should be checked correctly once they are fully arranged for concreting. Inspection of concreting works is considered as a vital step to attain superior strength and stability of the structure. The purpose of a check list at the time of making inspection of the concrete member is to keep record of the concrete placement and quality control measures provided at site. Phases of examination of Concrete Works - Examination of concrete is performed in following 3 stages, 1. Pre-placement 2. During placement 3. Post-placement. Type of examination of concrete is based on the type of concrete, i.e. PCC or RCC, type of components being casted like RCC slab, columns, footing, beams, walls etc. It is both useful for the contractor and engineer to keep the record of checks, in order that they can be submitted for any inconsistency. It can also be used as a proof of quantity of concrete work accomplished by the...

DIFFERENCE BETWEEN PLASTERING & POINTING PLASTERING Applying mortar coats on the surfaces of walls, columns, ceiling etc. to get smooth finish is termed as plastering. Mortar used for plastering may be lime mortar, cement mortar or lime-cement mortar. Lime mortar used shall have fat lime to sand ratio of 1 : 3 or 1 : 4. If hydraulic lime is used mix proportion (lime: sand) is 1 : 2. Cement mortar of 1 : 4 or 1 : 6 mix is very commonly used for plastering, richer mix being used for outer walls. To combine the cost effectiveness of lime mortar and good quality of cement mortar many use lime-cement mortar of proportion (cement : lime : sand) of 1 : 1 : 6 or 1 : 1 : 8 or 1 : 2 : 8. The objective of plastering are: To conceal defective workmanship To give smooth surface to avoid catching of dust. To give good look. To protect the wall from rain water and other atmospheric agencies. To protect surfaces against vermit.   Requirement of good plaster are: It sh...