Protect Yourself from Silica Dust Silica dust, known as crystalline silica, is a naturally occurring mineral found in various rocks, sand, and soil. It is commonly encountered when working with concrete, mortar, stone, brick, and asphalt. Silica dust is generated by cutting, drilling, grinding, or crushing these materials. Silica consists of tiny crystalline particles of … Read more
In the dynamic realm of construction, ensuring top-notch quality in every project is paramount. Accurate data collection stands as a cornerstone of quality control, offering invaluable insights into various project facets. From material quality to workforce efficiency, the benefits of meticulous data collection cannot be overstated. Let’s delve into why accurate data collection is crucial … Read more
Admixtures are substances which when added to concrete in small doses can overcome some of the drawbacks viz., poor workability, high shrinkage cracks, poor performance against chemicals, high permeability, inadequate protection of steel reinforcement from corrosion, low tensile strength and lower fracture toughness. Admixtures can be defined as materials other than water, cement and aggregate, … Read more
How to Build A Durable RCC Structure Concrete is an amazing building material, but making it strong and long-lasting involves mastering five crucial elements: site investigation, structural design, material selection and mixing, careful handling, and ongoing maintenance. Let us discuss each 1. Site Investigation: Imagine you’re planning to build something with concrete, even a small … Read more
What is Alkali Aggregate Reaction Alkali-Aggregate Reaction (AAR), also known as Alkali-Silica Reaction (ASR) or Alkali-Carbonate Reaction (ACR), is a chemical reaction that occurs in concrete structures. It involves the interaction between certain components in the concrete mix: Alkalis: Alkalis are compounds found in cement, primarily sodium oxide (Na2O) and potassium oxide (K2O). Aggregates: Aggregates … Read more
Cubic feet are an imperial and US customary unit of volume used to measure the volume of space that an object occupies in three dimensions. Cubic feet are often used in building, manufacturing, and engineering. Sectors. This unit of measurement is often abbreviated as “ft³” or “cu ft”. Understanding and using cubic feet is essential … Read more
Why cement mortar need to be consumed within 30 min just after it is mixed? Cement mortar is a mixture of cement, sand, and water used for various construction purposes such as plastering, masonry, and laying bricks. The reason why cement mortar needs to be consumed within 30 minutes after its preparation is due to … Read more
Types of Concrete additives Concrete additives are usually liquid and are only added in very small amounts whilst mixing the concrete. They have a physico-chemical action and are classified into so-called efficiency groups depending on their effect in freshly mixed or hardened concrete. 1. Concrete deflocculants These concrete additives depressurise the water, improving workability while … Read more
Distinctions are drawn between different types of concrete based on the composition, additives, surfaces, production process, or the nature of the reinforcement.
The packing density of aggregate gives an indication of how efficiently aggregate fill a certain volume and for that reason is such an important concept in concrete technology.