Construction Planning and Management
Batching refers to

Controlling the quantity of each material into each batch
Weighing accurately, the quantity of each material for a job before mixing
Controlling the total quantity at each batch
Adjusting the water to be added in each batch according to the moisture content of the materials being mixed in the batch

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Construction Planning and Management
Preliminary project report for a road project must contain

The soil survey, traffic survey, concept design and approximate cost
The contract documents for inviting tenders
The several alternatives of the project that have been considered
The detailed estimated cost based on detailed design

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