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Chapter 6

Fresh Concrete

قابلية تشغيل الخرسانة
قابلية تشغيل الخرسانة
If the concrete ingredients offer significant resistance against each other, the movement of the concrete is hindered, making the placement and handling ...
العوامل المؤثرة على قابلية التشغيل
العوامل المؤثرة على قابلية التشغيل
Workability depends on factors like water content because it boosts lubrication among the concrete ingredients, aiding workability. Finer particles, for ...
الفصل في الخرسانة الطازجة
الفصل في الخرسانة الطازجة
Excessive horizontal movement of concrete within forms, or dropping it from a considerable height or through narrow spaces with directional changes, can ...
النزيف في الخرسانة الطازجة
النزيف في الخرسانة الطازجة
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 ...
اختبار الركود
اختبار الركود
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 ...
اختبار عامل الضغط
اختبار عامل الضغط
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 ...
اختبار Vebe
اختبار Vebe
The Vebe test is conducted on concrete to identify its workability, preferably for dry mixes. The test apparatus comprises a cylindrical chamber measuring ...
اختبار جدول التدفق
اختبار جدول التدفق
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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