GCM Engineering

31/10/2024

Soil investigation

08/07/2020

Site investigation or Sub-Soil explorations are done for obtaining the information about subsurface conditions at the site proposed for construction. Soil exploration consists of determining the profile of the natural soil deposits at the site, taking the soil samples and determining the engineering

09/03/2016

02/12/2014

http://construction.gcmengineering.com/?p=295

A sample of freshly mixed concrete is placed and compacted y rodding in a mold shaped as the frustum of a cone. The mold is raised and the concrete allowed to subside. The vertical distance between the original and displaced position of the center of the top surface of the concrete is measured and…

27/11/2014

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http://construction.gcmengineering.com/?p=291

Michelle Pelletier’s (a University of Rhode Island master’s degree candidate) new self-healing concrete. Currently, concrete is the most widely used building material, yet as the structures age, concrete cracks – and what begins as a slight crack can turn into a massive problem. Pelletier’s solution…

20/11/2014

http://construction.gcmengineering.com/?p=281

Shoring is the process of supporting a building, vessel, structure, or trench with shores (props) when in danger of collapse or during repairs or alterations. Shoring comes from shore a timber or metal prop. Shoring may be vertical, angled, or horizontal. Type of shoring Buildings Raking Shores cons…

13/11/2014

http://construction.gcmengineering.com/?p=245

Non-Destructive Tests are useful for testing and evaluation of concrete strength after construction and during its lifetime. NDT tests are conducted to ensure the quality of concrete construction as per required specification for intended use. Various Non Destructive Testing Equipments for concrete…

08/11/2014

http://construction.gcmengineering.com/?p=192

Stamped concrete is an architectural concrete which has a superior surface finish. After a concrete floor has been laid, floor hardeners (can be pigmented) are impregnated on the surface and a mold which may be textured to replicate a stone / brick or even wood is stamped on to give an attractive te…

08/11/2014

http://construction.gcmengineering.com/?p=200

The defects in concrete in Japan were found to be mainly due to high water-cement ratio to increase workability. Poor compaction occurred mostly because of the need for speedy construction in the 1960s and 1970s. Hajime Okamura envisioned the need for concrete which is highly workable and does not r…

08/11/2014

http://construction.gcmengineering.com/?p=208

Pervious concrete, used in permeable paving, contains a network of holes or voids, to allow air or water to move through the concrete. This allows water to drain naturally through it, and can both remove the normal surface-water drainage infrastructure, and allow replenishment of groundwater when co…

08/11/2014

http://construction.gcmengineering.com/?p=204

Shotcrete (also known by the trade name Gunite) uses compressed air to shoot concrete onto (or into) a frame or structure. The greatest advantage of the process is that shotcrete can be applied overhead or on vertical surfaces without forming. It is often used for concrete repairs or placement on br…

08/11/2014

http://construction.gcmengineering.com/?p=212

Ferrocement, also referred to as ferro concrete or reinforced concrete, a mixture of Portland cement and sand applied over layers of woven or expanded steel mesh and closely spaced small-diameter steel rods rebar. It can be used to form relatively thin, compound-curved sheets of concrete ideal for s…

08/11/2014

http://construction.gcmengineering.com/?p=167

Formwork comes in several types: Traditional timber formwork. The formwork is built on site out of timber and plywood or moisture-resistant particleboard. It is easy to produce but time-consuming for larger structures, and the plywood facing has a relatively short lifespan. It is still used extensiv…

30/10/2014

Concrete Recycling System

02/09/2014

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LandSlinding Baltimore April 2014
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04/02/2014

Paving Machine