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Concrete admixture

GCP Applied Technologies

Organic water reducers – Most offered here are an aqueous solution of modified lignosulfonates containing a catalyst which promotes more complete hydration of Portland cement. Hydration stabilizer – This ready-to-use aqueous solution of chemical compounds is specifically designed to stabilize the hydration of Portland cement concretes.

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TYPES OF CEMENT AND THEIR USES

The Constructor

Blast Furnace Slag Cement It is obtained by grinding the clinkers with about 60% slag and resembles more or less in properties of Portland cement It can used for works economic considerations is predominant. It is more costly and is used for architectural purposes such as pre-cast curtain wall and facing panels, terrazzo surface etc.,

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COMPOSITION OF REACTIVE POWDER CONCRETE (RPC)

The Constructor

Portland cement – type V 1000 kg/m3 2. Portland cement – type V 955 kg/m 3 2. This compactness gives RPC ultra –high strength and durability.Reactive powder concretes have compressive strength ranging from 200 Mpa to 800Mpa. Typical composition of reactive powder concrete 800 Mpa 1. Fine sand ( 150 – 400 micron) 5001 kg/m3 3.

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STRUCTURAL USES OF PRECAST CONCRETE

The Constructor

The backing concrete is made from an ordinary mix, whereas the façade may consist of a special mix, e.g. white Portland cement. However, it is used more frequently as a non-structural decorative façade. A great variety of forms, details and colours can be produced. Precast concrete cladding is not exclusive to precast frames.

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REPAIR OF POST CONCRETING DEFECTS IN STRUCTURES

The Constructor

The materials normally used for patch repairs are: Portland cement and white Portland cement: Repairs are tend to be made with a high concentration of cement which will make the finished repair appear darker than the parent concrete. White Portland cement helps to lighten the colour. Now prepare the replacement concrete.

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Race to a Smart Future

Buisness Facilities Contributed Content

The finalists, announced at the South by Southwest (SXSW) tech and music fest, are: Austin, TX; Columbus, OH; Denver, CO; Kansas City, MO; Pittsburgh, PA; Portland, OR; and San Francisco, CA. Portland’s concept is called “Ubiquitous Mobility for Portland” (UB Mobile PDX). Allen’s Vulcan Inc.

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CELLULAR LIGHTWEIGHT CONCRETE?FLY ASH BASED

The Constructor

Home News Videos Tips Building Building Bye Laws Building Materials Aggregates Cement Wood Building Tips Buildings Green Buildings Flooring Formwork/Shuttering Paints & Decoratives Skyscrappers Smart Materials Concrete Concrete Admixtures Concrete Cracks Crack Repair Concrete Durability Concrete Properties Concrete Types Fibre reinforced Fire Proof (..)

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