Workability of concrete is the characteristic of freshly mixed concrete which defines the ease and homogeneity with which it can be mixed, transported, placed, compacted, and finished as described by ACI Standard 116R-90 (ACI 1990b). As per ASTM “that property determining the effort needed to manipulate a freshly mixed quantity of concrete with minimum loss … Read more
Polymer Concrete Polymer Concrete is a special type of Concrete that utilized Polymer instead of Lime-type Cement as a binder. In certain circumstances, Polymer is used in addition to Portland cement to make Polymer Cement Concrete (PCC) or Polymer Modified Concrete (PMC). The traditional concrete is puros due to the presence of air voids, water … Read more
Creep in Concrete Elastic and long-term deformation of Concrete under a continuous load is called Creep. Long-term stress alters the shape of the concrete structure and deformation occurs along the direction of applied stress. After the removal of stress, the strain is reduced immediately. The amount of the reduced strain is equal to the elastic … Read more
Shrinkage is an intrinsic characteristic of concrete. The shrinkage in concrete can be characterized as the volume changes observed in concrete because of loss of moisture at various stages due to different reasons. Concrete Shrinkage The loss of moisture content due to Evaporation in concrete is known as the shrinkage of concrete. In the first … Read more
Shotcrete Shotcrete is also known as sprayed concrete. Shotcrete is pneumatically projected or sprayed with the help of a nozzle at high velocity on the prepared surface. The complete system is also called spraycrete. Shotcrete is poured and consolidated at the same time due to the load ejected from the nozzle. Shotcrete can be placed … Read more
Reinforced Cement Concrete in short form called RCC. Most of the building structures are made of either steel or RCC. A normal building structure is made by RCC. It is a very innovative material that resists both tensile forces as well as compressive force. Due to the huge load resisting capacity, it is widely used … Read more
Lintel A Lintel is a type of beam which is placed across the opening of doors, windows, and equipment opening in the wall. The Lintel is a load-bearing structure and it is provided across the width of the window. In the window, the beam provided at the bottom level is known as the Sill. Sill … Read more
Various types of concrete waterproofing are used such as Bitumen Membrane waterproofing, Cementitious Waterproofing, Liquid Membrane Coating, Bitumen Coating, etc. Concrete waterproofing is needed to provide an impervious layer and to avoid seepage in the concrete structure. Concrete waterproofing is the use of an impervious material layer on concrete that keeps water from penetrating the … Read more
In this article, I will describe why we test concrete strength after 28 days. As we know the strength of concrete is normally tested after 28 days. As time passes concrete gains strength but it is still unknown how much time concrete takes to gain 100 % strength. In the first 28 days, concrete gains … Read more
What Is Concrete Spalling? Concrete spalling is an incident in which concrete breaks itself and is free from structure. In concrete spalling, reinforcement bars are exposed to the atmosphere. The initial phase of the spalling problem does not look much serious but when bigger parts break and are free from structure then it creates a … Read more