The facility where cement, sand, gravel, and water are combined in precise amounts to make ready-mix concrete.
A facility that combines cement, aggregate, water, and admixtures in measured quantities to produce ready-mix concrete. Batch plants can be stationary (permanent facilities) or mobile (portable, set up on the jobsite for large projects). The batch plant operator is responsible for producing concrete that meets the specified mix design proportions.
Whether concrete comes from a commercial batch plant or a jobsite mobile plant materially affects unit pricing, haul time, and pour scheduling on a bid. Distance from the plant determines delivery cost and the risk that concrete exceeds its allowable time in the truck before placement, which can trigger rejected loads and rework. On large or remote pours, the decision to mobilize an on-site batch plant is a cost-and-logistics tradeoff estimators weigh against per-yard delivered pricing and required production rates.
Pricing a remote highway project, the estimator finds the nearest commercial plant is over an hour away, so he carries the cost of mobilizing a portable batch plant on site to keep haul times within spec and hit the required daily pour volume.
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