Concrete Technology Archives

Estimation of Earth work excavation – Types, With Numerical Examples

Estimation of Earth work excavation in civil engineering is the process of calculations of expected quantity required, amount of work to be done, the number of worker and equipment required and total expenditure cost to complete any project. Different types of quantities are required to be estimated accordingly to their types of work. For example, …

Concrete topping slab | Types, the Construction process

What is Concrete Topping ? Concrete topping is the process of overlaying (resurfacing) the hard, non-abrasive, structurally tough layer of concrete over any existing surface. The old surface may be worn out or structurally not suitable for the special purpose; such as installing pieces of machinery and big equipment causing impacts and vibration at workshop, …

Type of concrete finish | Concrete finishing techniques

Concrete has the unique property of the plastic behaviour at its fresh or green state and then hardens to the rigid structure within a few intervals of time. This property of concrete helps to cast it into a different shape. It also allows us to provide a different kind of surface texture with help of …

Concrete Stress strain Curve and their Relationship

Elasticity, stress and strain When the external force is applied to the material body, it processes for change in shape and size. If the force is not too sufficiently large then the material body returns to its original state when force is removed. T his property of the material body due to which it returns …

What is a Spillway? Purposes and Different Types of Spillway

What is a Spillway? Different Types of Spillway

What is a Spillway? Definition Dams are generally constructed to store water of the channel so that it can be used for future work like irrigation, electricity, and mostly for flood control. In some case, dam get overflow of water which may damage the whole design and structure if we do not discharge excess water …

Cantilever retaining wall | Parts, Types, and Design of Cantilever Wall

Introduction Retaining walls are built in order to retain the soil masses located at suddenly abruptly changing elevation and provide lateral confinement. The retain mass on another side of the wall exerts lateral force and overturning moment to the constructed wall, and thus the wall is needed to design to encounter such forces and moment …

Mortar vs Grout | Characteristics, and Types of Mortar and Grout

What is Grout? Grout is quite viscous fluid or slurry obtain by admixing the cementing or binding materials along with required chemicals, a polymer that increases adhesive property and water so that they can be easily pressurized or flow in a gap space and capillaries. Thus they are used in reinforcement techniques where there is …

Concrete slump test procedure | Slump values and their uses

What is slump test of concrete? In this article, we discuss the concrete slump test. Before this, we have to know a term called workability. So, what is the workability of concrete? Workability is the ease with which the concrete ingredient can be mixed, transported from one place to another, compacted, placed in the mold, …

12 Difference between Design mix and Nominal mix of Concrete

Nominal mix and design mix are the methods of preparation of concrete mix. Concrete is the most significant material used to achieve desired properties of the structure, which is composed of cement, sand, coarse and fine aggregates mixed with water. Nominal Mix In the nominal mix concrete, cement, sand, and aggregates are used in fixed …

What is Batching of Concrete | Different Types of batching

What is Batching of Concrete? Batching Is a process of measuring the ingredients in batches for mixing. Batching of Concrete is done either by weight or by volume. Volume – Nominal Mix Weight – Design Mix For all-important concrete work batching should be done by weight and mixing by machine mixers. Let us discuss volume …