Civil Engineering Dictionary Terms : H

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Sr.TermDefinition
1HeaveUpward movement of soil caused by expansion or displacement resulting from phenomena such as moisture absorption, removal of overburden, driving of piles, frost action, etc.
2HedgeA row of closely planted shrubs forming a fence.
3HighwayThe whole right of way or area which is reserved and secured for use in constructing the roadway and its appurtenances.
4HoneycombingLocal voids or roughness of the face of a concrete structure, caused by the concrete having segregated so badly that there is very little sand to fill the gaps between the stones at this point. Such concrete is weak and should be cut out in a rectangular or square shapes and rebuilt if the wall is heavily loaded.
5HydrationThe combination of water with any substance such as lime or minerals, which is responsible for the alteration of minerals in weathering; the formation of hydrated lime; the setting of cement and so on.
6Hveem'S Resistance Value Test (The R-Value)The R-value is a measure of the ability of a soil to resist lateral deformation when a vertical load acts upon it. The R-value ranges from zero (the resistance of water) to 100 (the approximate resistance of steel). Rvalues of soil and aggregate usually range from 5 to 85.

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