What is pre tensioning and post tensioning in pre stressed concrete

Pre-Tensioning in Prestressed Concrete The Pre-stressed Concrete Institute (PCI) defines Pre-Stressing as “the application of a force to the reinforcing steel in concrete, so that it is loaded and unloaded periodically, to develop tensile stresses in the steel. The periodic loading produces compressive stresses which resist cracking.” Pre-tensioning is done by pulling or tightening cables…

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All About Slump Cone Test

Slump Cone Test | Workability Test Concrete slump cone test Slump Cone Test is the most commonly used method of measuring the consistency of concrete work where the nominal maximum size of the aggregate does not exceed 38 millimeters. This method can be employed either in the laboratory or at the site. Apparatus is required…

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Concrete Driveway Repair Guide

if you have a Concrete driveway on your property,odds are you’re gonna have to repair it at some point.Concrete is a durable,versatile material but there’s many factors that can lead to a damaged driveway can crack into pieces and push them out of alignment. Cold temperatures and ice can lead to damage and normal wear…

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