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Binders for Durable and Sustainable Concrete (Hardcover, New)
Loot Price: R6,431
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Binders for Durable and Sustainable Concrete (Hardcover, New)
Series: Modern Concrete Technology
Expected to ship within 12 - 17 working days
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Modern hydraulic binders can be used effectively with Portland
cement and supplementary cementitious materials to produce durable
concrete. They also provide a means of recycling by-products from
other industries and of decreasing the emission of greenhouse
gases.
The first binders were discovered in ancient times when it was
observed that new pozzolans mixed with lime could harden under
water; and in the middle of the nineteen century the first
artificial hydraulic binder, Portland cement, was discovered. By
modifying the four basic oxides in the limestone and clay mix used
in the production of Portland cement it is possible to modify
significantly the practical properties of the clinker, and
consequently the performance of the fresh and hardened concrete in
which it is used.
Chemical admixtures can be used to disperse cement particles
without the use of extra water, and so make concrete which is
highly resistant to penetration by aggressive agents and of high
durability and strength. Supplementary cementitious materials or
fillers can be mixed with Portland cement to produce modern
hydraulic binders and improve the ecological performance of
concrete. The hydration process of a modern hydraulic binder is
becoming quite complex because it involves the chemical reactivity
of Portland cement clinker, of supplementary cementitious materials
and of different types of admixtures. This has already resulted in
great technological achievements such as high-performance concrete,
self leveling concrete, confined concrete, high-performance roller
compacted concrete, fiber reinforced concrete, and reactive powder
concrete.
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