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Efflorescence on Concrete – Causes, Prevention and Removal

Efflorescence on Concrete – Causes, Prevention and Removal

Efflorescence in concrete is a whitish coloured powdered deposition of salts on the concrete surface that is formed due to evaporation of water from the concrete. It is caused when water soluble salts are present in the concrete material, which ...

Lime Soil Stabilization Method and Factors Affecting it

Lime Soil Stabilization Method and Factors Affecting it

Lime-Soil stabilization is the process of adding lime to the soil to improve its properties like density, bearing capacity etc. Various factors affecting lime-soil stabilization are soil type, lime type, lime content used, compaction, curing period and additives which are ...

Concrete Moisture Test Methods

Concrete Moisture Test Methods

Concrete moisture test is conducted to examine the presence and quantity of moisture in concrete. This is because moisture in concrete cause several problems for instance, discoloration, interrupt polymerization of products, and lead to delamination of bonded coating systems. Therefore, it ...

Differences Between Coarse-Grained and Fine-Grained Soil

Differences Between Coarse-Grained and Fine-Grained Soil

Coarse-grained soil and fine-grained soil are two different types of soil that can be identified based on their texture or ‘feel’ and particle size. It is very crucial to observe the range of particle sizes in soil as it heavily ...

Initial Setting Time and Final Setting Time of Concrete

Initial Setting Time and Final Setting Time of Concrete

Initial setting time of concrete is the time when cement paste starts hardening while final setting time is the time when cement paste has hardened sufficiently in such a way that 1 mm needle makes an impression on the paste in ...

Blended Cement – Characteristics, Types and Uses

Blended Cement – Characteristics, Types and Uses

Blended cement can be defined as uniform mix of ordinary Portland cement (OPC) and blending materials such as silica fumes, fly ash, limestone and slag to enhance its properties for different uses. Blended cement can improve workability, strength, durability and ...

Inspection and Testing of Ready Mix Concrete

Inspection and Testing of Ready Mix Concrete

Inspection and testing of ready mix concrete is crucial to ensure that all specified conditions meet the acceptable criteria. Ready mix concrete, which produced in batching plant and transported to construction site by truck mounted mixers, are commonly inspected and ...