In this article, we will describe the lap length of some popular structural members such as column, beam, and slab. Let’s get started! First, let’s get some idea about what is lap length! What Is Lap Length? The standard size of the reinforcement bar is 12 meters. This is the length of the reinforcement bar … Read more
Lightweight concrete is a special type of concrete made of lightweight coarse aggregate. Sometimes lightweight fine aggregate is used instead of lightweight coarse aggregate. The density of lightweight concrete is 1440 to 1840 kg/m³. Lightweight concrete is made by using lightweight aggregates or low-density materials such as volcanic pumice, clay, slate, shale, scoria, tuff. If the density of … Read more
California Bearing Ratio test or CBR is used to calculate the strength of the material for pavement design. CBR test is the test that was developed by the California state highway department of the USA for the determination of subgrade strength of highway and air-filled pavement. It is a penetration test. In this test, a … Read more
The reinforced concrete beam which is constructed on the ground level is known as the grade beam. Mostly it is used to connect pile caps in pile foundation. The functions of a grade beam are very different from a wall footing because a grade beam is designed for bending. A grade beam is normally a … Read more
A floating slab is a concrete slab that rests over the ground surface without any anchoring. As the name suggests, it resembles a plate that is simply laid over the water, without any connection between them. Floating slabs are concrete slabs that are laying over the ground, with practically no anchor supports, as though it … Read more
Concrete release agents are coating added on the surface of the formwork before pouring concrete. It helps to allow quick removal of formwork. The concrete releasing agent provides a smooth finished surface. Make sure that there should not be no debris in the mixed concrete. Concrete release agents comprise a mix of mineral oil, ester/plant … Read more
In this type of footing, at least two columns are supported in a row and a common foundation is provided. A combined footing is provided when the bearing capacity of the soil is low and required more surface area. Basically, It is made of reinforced cement concrete (R.C.C). Combined footing distributes the load from the superstructure to … Read more
The concrete block which has a core-zero area of more than 25% of the total surface area is known as a hollow block. Hollow blocks are lighter than conventional concrete blocks. These types of blocks are used for partition walls. Hollow blocks took less material which is why they are very light in weight. One … Read more
A slab is a very important component of a structure. In ancient times, people used natural materials like mud, clay, bamboo to construct slabs. But the problem was that these slabs were not much durable or people did not have technical knowledge about materials. As civilization grew, peoples start innovating different materials to construct slabs. … Read more
Concrete is the mixture of water, cement, and aggregate in a suitable proportion. It possesses very high compressive strength. Concrete is combined with reinforcement to make it suitable for structural works. In this article, we will discuss the following properties of concrete. Workability of Concrete Segregation of concrete Bleeding in Concrete Compressive Strength of Concrete … Read more