A waffle slab also known as two-way joist slab is a slab made of reinforced concrete with its ribs running in two directions underside of the slab. Ribs are wide band beams that run between columns spanning the orthogonal direction. That’s the reason why waffle slab is also sometimes referred to as ribbed slab. The … Read more
Density of concrete (weight per unit volume) or weight of concrete per cubic foot in fps system of units is 150 pounds per cubic foot. That means a block of concrete with dimensions of 1’x1’x1’ (length x width x height) comes out as 150 pounds. When it comes to concrete weight, a lot of homeowners … Read more
Segregation and bleeding are two of the most common flaws that significantly impact the concrete quality. But it is critical to understand the difference between segregation and bleeding. These two flaws result in a different set of symptoms. Do you know what is the difference between segregation and bleeding? Both impact the workability and strength … Read more
Have you ever wondered how civil engineers use concrete retarders to compensate the accelerating effect of high temperature in mass concrete? Or why thy add sugar in concrete while pouring? The use of concrete retarders as admixture slows down the setting rate of concrete. Slow initial setting time allows site engineers to place concrete in … Read more
When we think about the drainage of driveway, yard, or pavement, two important relevant structures are curbs and gutter. In fact, curbs and gutter is an important part of a roadway. But a lot of home owners don’t know what does curb and gutter mean, or what some relevant details one must know are. Well, … Read more
Concrete leveling is a process that is used to fix low spots in concrete slabs. When done correctly, it can provide a number of benefits for homeowners and businesses alike. Concrete levelers are best use to create smooth, flat and even surface in a matter of few hours. But you’ve got to know the right … Read more
Post tension slabs or PT Slabs are concrete slabs in which high-strength steel tendons are placed that are subjected to tension after the slab concrete has been cast and dried. The post tensioning in slabs increase the load-bearing capacity of the structure and also help to counteract deflections. Post tension slabs are ideal to achieve … Read more
Apart from the normal shrinkage cracks in concrete due to hydration, there’re different types of concrete cracks that one must know. Some of these cracks are critical where others are hairline cracks that you don’t always have to repair. So, it is critical to understand the most common causes of cracking in concrete and how … Read more
Surkhi mortar has been used in the construction of buildings, roads and other construction projects since ancient times. It’s commonly found in rural villages across the country, where it’s often used to build homes, walls and floors that are both structurally sound and aesthetically pleasing. Surkhi mortar, also known as Surkhi brick, is an inexpensive … Read more
There’s nothing like pouring your own concrete patio or driveway in order to personalize your home and create something functional you can use every day. However, concrete can be tricky to work with, especially if it rains while you’re pouring it. But not impossible if you’re cautious and prepared enough. So, whether you’re pouring a … Read more
