Damage to structural concrete can be due to the use of excessive water, poor cement, poor construction practices, improper mixture proportioning, dirty or low quality aggregate, and inadequate curing.
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Mix Design of High-Strength Concrete: Methods, Procedure and Example
Mix design of high strength concrete is influenced by properties of cement, sand aggregates & water-cement ratio have compressive strength above 40 MPa. To achieve high strength, it is necessary to use lowest possible water-cement ratio, which invariably affects the ...
Recommended Concrete Mixes for Various Types of Construction
Recommended Concrete Mixes for Various Types of Construction Works: Various types of concrete construction requires different concrete mixes for its construction. The recommended value of these concrete mixes for various types of construction is presented in table below: Table: Recommended ...
CONCRETE MIX DESIGN USING CRUSHED SAND
The process of selecting suitable ingredients of concrete and determining their relative amounts with the objective of producing a concrete of the required, strength, durability, and workability as economically as possible, is termed the concrete mix design. The proportioning of ...
MIX FOR HIGH STRENGTH CONCRETE
Mix for High Strength Concrete In order to obtain high strength of concrete, three methods are available in general. The first is to increase the strength of the binder, the second is to select aggregate with high strength, and the ...
TRIAL AND ERROR METHOD OF CONCRETE MIX DESIGN
In Trial and Error Method of concrete mix design, the proportion of fine aggregate to coarse aggregate is find out by trial, which gives the maximum weight of the combined aggregate. The density of particle of fine aggregate and coarse ...
ACI Method of Concrete Mix Design – Procedure and Calculations
ACI method of concrete mix design is based on the estimated weight of the concrete per unit volume. This method takes into consideration the requirements for consistency, workability, strength and durability. This article presents ACI method of concrete mix design. ...
Lightweight Aggregate Concrete – Properties, Uses and Weight per Cubic Feet
Lightweight aggregate concrete is prepared by using lightweight aggregate or low density aggregate such as volcanic pumice, clay, slate, shale, scoria, tuff and pellite. Concrete is considered to be lightweight is the density is not more than 2200 kg/m3, when ...