Aggregate | Types of Aggregates Aggregate The other important component of concrete is aggregate; the quality of aggregate defines the quality of concrete. Almost three-quarters of the total volume of concrete is taken by aggregate. Aggregate was considered as inert and cheap material, but in fact it is not totally inert. The main functions of…
Admixtures | Types of concrete Admixtures Admixtures are also known as Additives. These are the fourth ingredient of concrete, other than cement, aggregate and water. They are for many reasons in concrete like to increase the workability of concrete, to reduce the cost of concrete structures, to maintain the quality of concrete at different stages…
Properties of Hardened Concrete Some of the important properties are shown below. Strength The strength of concrete is defined as the ability of concrete to resist stresses and to take loads without breaking or failing. There are many types of strength of concrete, like compressive strength, tensile strength, shear strength and flexural strength. The failure…
Transportation and Handling of Concrete Once the concrete is ready on the site or it reaches to the site by trucks and loaders. The labor transport it to the working site where concreting is carried out. The transport the concrete using one of the following ways: Mortar pan Wheel barrow Chutes Dumpers Bucket and ropeway…
Stages of Concrete Making Concrete production involves different process and stages; the different stages are given in the list below. Which would be discussed in detail in the latter part of the paper. Batching Mixing Transportation Placing Compacting Finishing Curing With different stages being introduced, let’s explain each stage in detail. Batching It is the…
Placing and Finishing Concrete Some of the main requirements for the placing of concrete are: even spreading, concrete quality ensuring, balance on air content, homogeneity and water-cement ratio. The deliverables of placing is to avoid segregation and aid compaction of concrete. Concrete is a plastic material, so it can be molded into any shape. In…
Curing of Concrete For the hardening of concrete through the setting of constituent components and to promote the reactions in the concrete, curing is carried out. Curing is needed for three main reasons, i.e. for the dissipation of heat, to reduce the moisture loss due to evaporation, and to maintain moisture for hydration. Curing helps…
Concrete Mix Design Mix design is the selecting of the right type of material in the right proportion to achieve all the specific properties of the concrete, to make the process of making concrete as economical as possible. Although this is not a simple procedure. The quality of concrete is directly influenced by the quality…
