Sulphate attack in Concrete, Its Effects, Causes and Prevention

Solution of the sulfates of various bases including sodium, potassium, magnesium and calcium react with hydrated cement paste forming gypsum or a compound called ettringite (sulphoaluminate) which leads to the expansion and disruption of the concrete and mortar this process is referred as sulphate attack. Sulphate attack is a chemical break down mechanism where suphate … Read more

Honeycombing in concrete, causes and remedies

The finishing in concrete works is vital as for sure the final touches depend on it. The poor finish of concrete is not only wrong from aesthetic point of view but also it shows the strength and integrity of the concrete structure. Besides many defects in concrete one important is honeycombing.  Hollow spaces and cavities … Read more