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Concrete’s cobra effect: unintended results of embodied carbon reduction

Construction Specifier

Recent efforts in North America to reduce embodied carbon in concrete are similar to British solutions to eradicate cobras in colonial India. Concrete is similarly suffering from too simple solutions in solving the complex problem of reducing embodied carbon. They have not updated their approach to documentation nor installation.

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STRUCTURAL USES OF PRECAST CONCRETE

The Constructor

Use of Precast Concrete in frames: There are two main types of precast building frame. Use of Precast Concrete for Floors: Each year the industry makes about 5 million square meters of precast floor slabs. Structural frames are mainly used for offices, car parks and retail developments.

Concrete 233
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REPAIR OF POST CONCRETING DEFECTS IN STRUCTURES

The Constructor

Cleanliness: when repairing concrete, care must be taken to remove any dirt or dust that will prevent the repair concrete bonding with the parent concrete. Cleanliness: when repairing concrete, care must be taken to remove any dirt or dust that will prevent the repair concrete bonding with the parent concrete.

Concrete 247
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COMPOSITION OF REACTIVE POWDER CONCRETE (RPC)

The Constructor

It is new technique involved in the civil engineering.Reactive powder concrete in made by replacing the conventional sand and aggregate by grounded quartz less than300 micron size, silica fume, synthesized precipitated silica ,steel fibers about 1 cm in length and 180 micron in diameter.

Concrete 161
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CONCRETE CURING METHODS

The Constructor

Both the rate and degree of hydration, and the resulting strength of the final concrete, depend on the curing process that follows placing and consolidating the plastic concrete. This reaction, called hydration, produces a stone-like substance—the hardened cement paste.

Concrete 189
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CELLULAR LIGHTWEIGHT CONCRETE?FLY ASH BASED

The Constructor

It has many advantages when compared to the normal conventional concrete. The density is considerably reduced by using fly ash based cellular lightweight concrete than normal concrete and at the same time, the strength is not affected by appropriate design mix.

Concrete 224
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Green Home Building and Sustainable Architecture: Magnesium.

Natural Building

Green Home Building and Sustainable Architecture. Sustainable architecture is an exciting and important field, with many people reviving traditional methods of building and others creating innovations to established practices. Kelly Hart has been involved with green building concepts for much of his life. Living Walls.