Core extraction and testing of concrete covers obtaining, preparing, and testing cores drilled from concrete for compressive strength test of casted concrete structures. Reference Standard codes: ASTM code C 42 IS 516 IS 1199 General Tips of Core Extraction: Concrete ...
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HOW TO CONTROL WASTAGE OF CONCRETE AT SITE?
How to control wastage of concrete at site? While estimating quantity of concrete for particular structural work, we normally consider 3-5% as wastage. But wastage of concrete more than that can increase the cost of project and may impact project ...
POLYURETHANE WATERPROOFING OF CONCRETE ROOF SLAB
Polyurethane Waterproofing of Concrete Roof Slab: Polyurethane waterproofing of concrete roof slab consists of two pack clear/pigmented Aliphatic Polyurethane using Polyether Polyols with Isocyanate for rendering flame resistant characteristic. The two pack system consisting of pigment and the solvent (Xylene/Toluene, ...
How does Aggregate Properties Affect Concrete?
Coarse aggregates have properties such as size, shape, moisture contents, specific gravity, density etc. which affects concrete strength and durability in many ways. These effect of aggregate properties on concrete are discussed in detail. Concrete is a mixture of cementitious ...
What are Different Chemical Tests on Concrete Structures?
Chemical analysis of concrete can provide extremely useful information regarding the causes of failure of concrete. The tests most frequently carried out chemical tests on concrete structures are: Depth of carbonation Chloride content Cement content Sulphate content Type of cement ...
Steel Fiber Reinforced Concrete Mix Preparation and Uses
Steel Fiber Reinforced Concrete (SFRC) Steel fiber reinforced concrete is a composite material having fibers as the additional ingredients, dispersed uniformly at random in small percentages, i.e. between 0.3% and 2.5% by volume in plain concrete. SFRC products are manufactured ...
Causes and Remedies of Cracks in Concrete Buildings
Cracks in concrete buildings have several causes. They may show total extent of damage or problems of greater magnitude. They may represent critical structural distress, lack of durability, or they might influence appearance only. The importance of cracks dependent on ...
Selection of Durable Construction Materials for Concrete Structures
Durable concrete construction requires selection of durable construction materials. Selection and properties of these construction materials are discussed.