What is injection grouting – Purpose – Types – Procedure

What is injection grouting

Injection grouting is a technique of repair used to fill up gaps, cracks, voids or annular spaces between joints in concrete walls, masonry or underground structures. Injection grouting is carried out with a specialized type of grout material that is filled under pressure and set hardened according to the shape of void or crack. We … Read more

Compaction factor test for workability of concrete

Compaction Factor Test

The compaction factor test is done to check the workability of concrete, on the basis of weight ratio between partially compacted to fully compacted concrete. We can’t use the slump test for low workable concretes. Concretes we mostly use in mass dam structures or road pavements have significantly low values of slump. For all such … Read more

What is lean concrete? – Purpose – Uses – Mix Design

What is lean concrete

So, you’re wondering what is lean concrete? Well, concrete mix made from lean concrete is low in cement and high in aggregates. It is used for several purposes, such as blinding concrete under foundations and leveling pads below footings. We call lean concrete “not rich.” That’s because it is not rich in cement. Cement is … Read more

Rapid Hardening Cement – Properties – Benefits – Uses

Rapid Hardening Cement

Rapid hardening cement is a particular type of cement that is used in exceptional cases of concrete pouring. As the name implies, rapid hardening cement needs the shortest time to set up and consolidate. It achieves higher strength on lesser days.  With such, it can attain seven days strength in only three days. You can … Read more

Specific Gravity of Cement – Definition – Test – Procedure

Specific Gravity of Cement

For most of the cements we use in construction has a specific gravity of cement ranging between 3.1 to 3.16 g/cc and a density of 1440 Kg/m3. But that doesn’t mean it stays same for all types of cement we have. Moreover, specific gravity itself is an important quality control parameter for cements while determining … Read more

Slump Test Experiment – Apparatus – Types – Procedure

Slump Test Experiment

Slump test is a laboratory or site experiment civil engineers perform to assess the workability of the concrete. With such, the test is also referred to as slump cone test or concrete workability slump test. During concrete pouring, you need to check the uniform quality of concrete in terms of consistency and workability. Fresh concrete … Read more

What is concrete grinding? How to do it? 

What is concrete grinding?

Whether you prefer to go for exposed concrete floors or you have recently bought a precast concrete countertop, you would be annoyed and worried by the roughness in the concrete finish. The only thing you can do about it is; concrete grinding and polishing. Besides removing imperfections and roughness of the concrete surface, there are … Read more

Air entraining agents – Definition – 5 Types

We intentionally entrain microscopic air bubbles in concrete to enhance its durability against freeze and thaw. Air entraining agent or pore-forming agents are admixtures that are used to incorporate air into the concrete mix. They enhance the workability of concrete and improve resistance against salt scaling or freeze and thawing. Definition In normal concrete, the … Read more

Concrete Definition – 3 Basic Components – Grades

Concrete definition

So, you’re one of the future constructors and are wondering what is concrete definition in civil engineering. Well, in simple terms, concrete is a composite material or a mixture of fine and coarse aggregate that is bonded together by cement paste. The aggregate – both fine and coarse, are termed as filler content while the … Read more