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Chapter 6

Fresh Concrete

יכולת עבודה של בטון
יכולת עבודה של בטון
If the concrete ingredients offer significant resistance against each other, the movement of the concrete is hindered, making the placement and handling ...
גורמים המשפיעים על יכולת העבודה
גורמים המשפיעים על יכולת העבודה
Workability depends on factors like water content because it boosts lubrication among the concrete ingredients, aiding workability. Finer particles, for ...
הפרדה בבטון טרי
הפרדה בבטון טרי
Excessive horizontal movement of concrete within forms, or dropping it from a considerable height or through narrow spaces with directional changes, can ...
דימום בבטון טרי
דימום בבטון טרי
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 ...
מבחן שפל
מבחן שפל
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 ...
בדיקת גורם דחיסה
בדיקת גורם דחיסה
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 ...
בדיקת Vebe
בדיקת Vebe
The Vebe test is conducted on concrete to identify its workability, preferably for dry mixes. The test apparatus comprises a cylindrical chamber measuring ...
בדיקת טבלת זרימה
בדיקת טבלת זרימה
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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