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Building Materials

Building Materials
Addition of pozzolana to ordinary Portland cement increases

Heat of hydration
Bleeding
Shrinkage
Permeability

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Building Materials
Whitworth compressed steel is obtained when molten steel is subjected to a pressure of

15 kg/mm²
5 kg/mm²
9 kg/mm²
13 kg/mm²

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Building Materials
Slate is formed by metamorphic action on

Sand stone
Lime stone
Granite
Shale

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Building Materials
The normal consistency of ordinary Portland cement is about

40 %
10 %
20 %
30 %

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Building Materials
Due to attack of dry rot, the timber

None of these
Cracks
Reduces to powder
Shrinks

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Building Materials
The maximum quantity of calcium chloride used as an accelerator in cement in percentage by weight of cement is

2
3
4
1

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