use of granite waste as powder in scc for whitetopping




INTRODUCTION

GENERAL INTRODUCTION
Reinforcing old flexible pavements with concrete layers is called as whitetopping. It is a technique that deserves to be divided under to major’s procedures.
Construction of normal thickened slabs over the old pavement and the application of thin cement concrete layers (about 100 mm) with more closed joints, defining square shaped slabs.

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Abstract
The possibility of using finely ground waste glass as partial cement replacement in concrete was examined through three sets of tests: the lime-glass tests to assess the pozzolanic activity of ground glass, the compressive strength tests of concrete having 30% cement re-placed by ground glass to monitor the strength development, and the mortar bar tests to study the potential expansion. The results showed that ground glass having a particle size finer than 38 m did exhibit a pozzolanic behavior. A size effect was observed; ....etc

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Waste Water Recycling & Re-Use



Wastewater

Wastewater (WW) is a
combination of the liquid, or
water carried wastes,
removed from domestic,
institutions, commercial and
industrial establishments
together with surface/ ground/
storm water.


Wastewater Treatment and Reuse
Some Key Safeguards for agricultural reuse
• safeguard the health of people who eat produce grown in
recycled water, residents of neighborhoods near irrigated areas
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Wonderful use for thin plastic road-waste



Discarded thin-plastic carry-bags are a menace.

In town they clog drains, cause flooding, choke animals that eat them and are unsightly.

Strewn across fields, they block germination and prevent rainwater absorption by soil.

Recycling plastic by melting releases fumes,and is only possible 3-4 times.

Toxic contents might leach into recycled water-pots or water-pipes.


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