Astm c94 90 minutes3/14/2024 The requirements of ASTM C1798, “ Standard Specification for Returned Fresh Concrete for Use in a New Batch of Ready-Mixed Concrete,” are in addition to those of the purchaser and the project specifications. ASTM C1798 specifies how to do that without jeopardizing the quality of the new concrete. Now, however, it’s possible to incorporate fresh concrete into a new batch. In times past, the driver would dump that concrete on the ground. Another source of construction waste is fresh concrete that must be returned to the plant. A previous blog discussed how to reuse water from concrete production. CALGreen requires the reuse, recycling, or salvage of at least 65% of the waste from construction and demolition.
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