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
Introduction: The rapid chloride permeability test of concrete is an in-situ test to check concrete permeability. This test is very simple and gives results very fast. Rapid Chloride Permeability test is powered by AASHTO T 277 or ASTM C 1202. The rapid chloride permeability test of concrete is conducted to check the Concrete’s Ability to Resist Chloride … Read more
Flow table test is used to calculate the workability of concrete. In the flow table test workability of concrete is determined by observing the flowing property of concrete. It is a lab test that suits low concrete workability. This test was also used to determine consistency, cohesiveness, and the proneness to segregation. Workability is a very … Read more
What Is K Slump Test Of Concrete? K Slump Test of concrete is used to determine the workability and degree of compaction of wet and fresh concrete. The slump test is the most popular to find the workability of freshly mixed concrete but it is not suitable for mass concrete. To tackle this problem, the … Read more
The compaction factor test of concrete is conducted to determine the workability of concrete. Normally we use slump test on the construction site but it does not give accurate results for the low workability of concrete when the slump is less than 50mm. Recommended Slump values for different Structures are given in the below table. … Read more
The rebound hammer test is used to determine the compressive strength of concrete by using a rebound hammer. It is also called the Schmidt hammer test or Swiss hammer test. This test comes under the category of Non-Destructive Testing of Concrete. Purpose of Rebound Hammer Test There are there main purposes of this test. To … Read more
The different concrete structures have different formwork removal times. In this article, we have covered the formwork removal time of the most common concrete structures used in the field of construction. Formwork removal time is also called de-shuttering time. Formwork removal time of concrete structures The formwork can be removed after the concrete is appropriately … Read more
Types of joint There are four types of joint in concrete construction as follows. These joins are provided in concrete structures to avoid forming cracks. Let us discuss each type of joint in concrete construction. 1. Construction Joints Construction joints are provided to permit both ways displacement in the slab. It is also transferred flexural … Read more