The relation between compressive strength of concrete cube and cylinder is complex. The various factors including inherent variations in concrete quality and comparison between cube and cylinder strength affects the strength ratio. Factors affecting Concrete Cube and Cylinder Strength Ratios ...
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Tests on Hardened Concrete in Structures
Various tests on Hardened Concrete is done to ensure the design strength of concrete and quality of concrete construction is achieved. Tests on Hardened Concrete The test conducted on hardened concrete can be classified into two main categories: Destructive Tests ...
What is Shrinkage Cracks in Concrete? -Types and Causes of Shrinkage Cracks
Shrinkage cracks in concrete occur due to change in moisture of concrete. Concrete and mortar are porous in their structure in the form of inter-molecular space. They expand when they absorb the moisture and shrink when they dry. This is ...
Destructive and Non-Destructive Field Testing of Concrete
Field testing of concrete structures include non-destructive testing and destructive testing. These methods are used in completing the field condition survey.
Honeycombs in Concrete – Their Causes and Remedies
Honeycombs are hollow spaces and cavities left in concrete mass on the surface or inside the mass where concrete could not reach. These look like honey bees nest. Improper vibration and workability of concrete are main causes of honeycombs in ...
BUILDING ORIENTATION FOR HOT AND DRY CLIMATE
Orientation of building should be done for the climatic zone in which the building is situated. The purpose of orientation is to provide residents a comfortable living space throughout the year even under severe undesirable weather conditions. Here we will ...
Bubble Deck Slab – Types, Material Specification, Installation, and Advantages
Bubble deck slab is a hollow, flat slab that spans in two directions, in which plastic balls are incorporated to replace, and therefore eliminate the concrete in the middle of a conventional slab which does not contribute to its structural ...
CONSTRUCTION PROJECT COST ESTIMATING
Estimating the cost of a proposed construction project is a very complex process containing much variable factors.Proper study, training and experience are needed to become proficient in this area of engineering. There are several categories that can have significant impacts ...
Accelerated Curing Method for Compressive Strength Test of Concrete
Accelerated Curing Method is used to get early high compressive strength in concrete. This method is also used to find out 28 days compressive strength of concrete in 28 hours. (As per IS 9013-1978-Method of making, curing and determining compressive ...
APPLICATION OF NANOTECHNOLOGY IN CIVIL ENGINEERING
APPLICATION OF NANOTECHNOLOGY IN CONSTRUCTION Nanotechnology is the engineering of functional systems at the molecular scale. Nanotechnology is concerned with objects between 1 and 100nm in size.( Nano meter) 1 Nanometer – 1 x 10-9m. Applications of nano technology in ...