Definition ACI 237 defines Self Compacting Concrete (SCC) as “highly flowable, non-segregating concrete that can spread into place, fill the formwork, encapsulate the reinforcement without any mechanical consolidation. Self-compacting concrete Idea Of Self Compacting Concrete SCC idea was brought up …
Concrete Bleeding Explained – Concrete Bleeding is predicted but if it is extreme it may cause issues. This text will clarify Bleeding in detail. In this article we discussed about removing bleed water from concrete. We also explained effect of segregation and bleeding on quality …
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What is FIREPROOF CONCRETE ?? – At the high temperatures experienced in fires, hydrated cement in concrete gradually dehydrates, reverting back to water (actually steam) and cement. This results in a reduction of strength and modulus of elasticity (stiffness) of …
The durability of concrete can be defined as its ability to resist weathering action, chemical attack, abrasion or another process of deterioration and hence retains its original shape, dimension, quality and serviceability. What is durability of concrete? Durability is the …
Concrete Slump Cone Test Procedure | Applications | Types | Uses – Slump test procedure is performed to check the workability of concrete. A good workable concrete has good strength. What is Workability of Concrete? Workability is a complex property …
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Curing of Concrete | Curing time & Duration | Curing methods – Concrete Curing Time and Duration – Any time you have 3 consecutive days where the average daily temperature is less than 40°F or if the temperature is lower …
Circular Prestressing is a term used to describe the prestressing of cylindrical structures such as pipes and tanks using prestressing wires that are twisted in circles. Contrary to popular belief, the term “linear prestressing” is used to encompass all other …
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Mineral admixtures play an important part in making of High Strength Concrete systems. Before going to mineral admixtures, I will clarify the difference between admixtures and additives Concrete admixtures vs additives: Anything which is added during grinding stage which has some …
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How To Improve Microstructure Of Concrete – As Civil Engineers, We all know that microstructure of concrete is very important in terms of strong durability and serviceability. Many deleterious actions operate through the microstructure of concrete therefore, it is very …
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Generally, the contractor shall allow for all necessary measures to monitor and avoid cracking in fresh hydrating concrete, regardless of the size or volume of the pour. Such measures shall be to the satisfaction of the Engineer and shall be …