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Chapter 6

Fresh Concrete

混凝土的和易性
混凝土的和易性
If the concrete ingredients offer significant resistance against each other, the movement of the concrete is hindered, making the placement and handling ...
影响加工性的因素
影响加工性的因素
Workability depends on factors like water content because it boosts lubrication among the concrete ingredients, aiding workability. Finer particles, for ...
新拌混凝土中的离析
新拌混凝土中的离析
Excessive horizontal movement of concrete within forms, or dropping it from a considerable height or through narrow spaces with directional changes, can ...
新混凝土渗出
新混凝土渗出
If water from the concrete mix rises to the top of the newly laid concrete, it is bleeding. The cause is the mix's solids failing to retain all water ...
坍落度测试
坍落度测试
The slump test measures concrete workability and uses a 12-inch high truncated cone mold, narrowing from eight inches at the base to four inches at the ...
压实因子测试
压实因子测试
The compacting factor test determines the workability of concrete with aggregate sizes up to a maximum of one and a half inches. The test equipment ...
Vebe 测试
Vebe 测试
The Vebe test is conducted on concrete to identify its workability, preferably for dry mixes. The test apparatus comprises a cylindrical chamber measuring ...
流程表测试
流程表测试
The flow table test, used to find the workability of concrete and evaluate highly flowable concrete, involves an apparatus consisting of a wooden board ...
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