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22 Αυγ 2023 · This test method covers determination of the density of freshly mixed concrete and gives formulas for calculating the unit weight, yield or relative yield, cement content, and air content of the concrete.
Yield is used to determine if the concrete supplier has delivered the amount of concrete ordered. For example, if the contractor orders 7 yards and the concrete pour comes short of filling the structure, a yield test can be performed to determine if 7 yards were actually delivered.
1.1 This test method covers determination of the density (see Note 1) of freshly mixed concrete and gives formulas for calculating the yield, cement content, and air content of the concrete. Yield is defined as the volume of concrete produced from a mixture of known quantities of the component materi-als.
This document specifies procedures for testing fresh concrete. It specifies the following test methods: determination of consistence (slump test, Vebe test, degree of compactability, flow-table test for high‑fluidity concrete, and the slump-flow test), determination of fresh density and determination of air content by the pressure-gauge ...
WHAT is Yield? WHAT Is An Appropriate Yield? This TIP outlines process for determining yield of concrete and evaluating problems with yield The basis of sale for ready mixed concrete is by volume (yield) and its estimation is stated in ASTM C94/C94M, Specification for Ready-Mixed Concrete. Ready mixed concrete is batched by weight and sold on a ...
This test method covers determination of the density of freshly mixed concrete and gives formulas for calculating the unit weight, yield or relative yield, cement content, and air content of the concrete.
30 Ιουν 2014 · The yield of the concrete is simply this actual, measured volume divided by the reported volume. So, let’s say our example mix arrived 1.5% low on air content. If you performed the C138 density test onsite it would come in at 141.6 lb/cubic foot.
