Properties of Aggregates for Concrete in Severe Weathering Regions

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The location of different weathering regions are shown in the figure below: The aggregates are designated as below: a. 1S b. 2S ...
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Required Properties of Concrete Aggregate in Negligible Weathering Region; ASTM C33

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A region can be said to be under negligible weathering, where concrete hardly exposed to detrimental effect of freezing under presence of ...

Weathering Regions for Concrete Aggregates in United States (ASTM C33)

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ASTM C33 provides maximum permissible limit for deleterious substances of coarse aggregates of concrete . This classifies coarse aggrega...

Frequency of Testing of Concrete Aggregate for Moisture Content

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We have discussed few posts about moisture content in aggregates ; here we will learn about frequency of testing for this parameter. We kn...

What is Freezing and Thawing Test for Aggregates for Concrete?

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Dear reader we have discussed about ASTM C-33 specification for soundness of aggregates for concrete ; where 8.1 and 8.2 defines specific...

Specification for Soundness of Fine Aggregates of Concrete (ASTM C33)

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Dear reader we have discussed about different tests to determine soundness aggregate for concrete according to both ASTM and BS. In all o...

Technical Survey and Analysis for Foundation Repair or Retrofitting

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At first we like to introduce technical survey and analysis required before taking decision for foundation repair and choosing method of f...

What is Difference between Soundness and Chemical Expansion in Concrete?

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The title of this post should be unsoundness of aggregate instead of concrete. However let’s consider soundness and chemical expansion of...

What are the Mechanical Methods of Concrete Compaction?

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In concrete construction, widely accepted concrete compaction method is vibration, this is a mechanical method of removing void from conc...

What is the Consequence of Concrete Form Leakage?

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We know formwork is an essential element of concrete construction . One of the most important advantages of concrete is derived with its a...

How to Compact Concrete in Sloping Surface?

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Dear reader usually we have cast concrete in either vertical or horizontal or combination of both. But in some case we have to establish ...

Manual Method of Concrete Consolidation

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Dear reader we all know consolidation is an essential element of concrete placement . Here we will discuss about manual consolidation. Con...

Influence of Aggregate Permeability on Concrete

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Dear reader in last post we have discussed about permeability of different rocks in relation to concrete durability ; the coefficient of p...

How do Fluctuating Loads Result Long-Term Foundation Settlement in Cohesionless Soil?

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Dear reader in previous post we have learnt that cohesionless soil usually not susceptible to long-term settlement in foundation soil. Bu...