| 摘要 |
A system which includes method and apparatus for the delivery of cementitious materials to a construction site using a transportable machine, a truck with an extensible crane, a containment frame, and transport cement silos that are carried by the truck and used to replenish cement. The machine has a frame with extensible legs and includes a cement storage and conveyor means having an agitator to assure the delivery of cement of uniform consistency to a batch mixer that has arms to rotate mix in a rotational loop. A water storage and conveyor means utilizes a constant head of water, a solenoid operated valve and a manually operated adjustment means to assure the delivery of water at a uniform flow rate to the batch mixer means. Sand of uniform density and consistency is delivered by a belt conveyor having a compression plate to compress the sand to a uniform density. The control system operates each of the above storage and conveyor means in a manner that enables the operator to select any volume within a given range which volume will contain constituents of a uniform ratio. The quantity of cement and sand in the system is monitored and controlled by a sensor and indicator means to enable dependability of operation.
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