The major problems that one encounters when pumping concrete are blockage of pipeline, and segregation and bleeding of concrete mix. Blockage is the failure of concrete to emerge at the end of the pipeline. It is characterized by an increase ...
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How to Prevent Honeycomb in Concrete Structures? Video Included
The prevention of honeycomb in concrete structures can save time and money, and help construct structurally sound concrete members. Therefore, undertaking preventive measures to avoid the occurrence of honeycomb is of utmost importance. The measures include proper compaction, use of ...
Preliminary Activities for Carrying out Riveting and Bolting
The process of making connections in steel structure is carried out using one of these three methods: welding, riveting, and bolting. The preliminary works such as laying out, fabrication, making holes, and assembling of steel members before executing the actual ...
Concrete Slump Variations at Site: How to Deal with it? Explained with Video
Adjusting the slump of concrete is a part of the concreting process, which the contractors should manage properly and cautiously. The concrete slump variation from one transit mixer to another is generally due to aggregate moisture content, concrete temperature, mixing ...
How to Calculate Working Space for Excavation?
Working space is the additional space provided between the edge of the excavation and the footing for the ease of labor movement for fixing, removing shuttering boards, pouring of concrete, and compaction of concrete using a vibrator. In this article, ...
All You Need to Know About Directional Boring
Directional boring or horizontal directional drilling (HDD) is a trenchless technology employed to install underground pipes without affecting the area above the borehole. Directional boring is used for the installation of utility pipelines and conduits. Most underground boring contractors use ...
How to Consolidate Concrete in Congested Reinforced Concrete Members?
Consolidation of fresh concrete in congested concrete members should be performed using proper concrete pouring and compaction procedures. Otherwise, the concrete element suffers from strength deficiency and durability loss due to problems like honeycomb and poor concrete cover in addition ...
Understanding Water Leakage in Concrete Structures: Its Causes and Prevention
Proper understanding of the causes behind water leakage in concrete is necessary for designers and site engineers to incorporate the preventive measures. Several factors, like the use of poor-graded aggregate, overdose of admixtures, deviations from designated mix, improper concrete placement, ...