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Grading method of cement-base self-leveling mortar
The invention provides a grading method of cement-base self-leveling mortar. The method comprises the following steps: screening and analyzing sand; measuring the screening residue of each sieve, and respectively calculating a sub-screening residue weight percentage, an accumulated screening reside weight percentage and a passing rate of sand in different particle sizes; performing primary grading design on the sand; based on the primary grading design solution of the sand in the above scheme, calculating a value P, and drawing a particle grading curve; primarily setting a ratio of powder to aggregate and a maximum particle size of a Fuller curve, calculating a value B and a value Psd, and drawing a Fuller curve; comparing the particle grading curve with the Fuller curve, repeating the above steps if the difference is relatively large, and obtaining a cement-base self-leveling mortar grading proportion when the particle grading curve is overlapped with the Fuller curve on three or more points. On the basis of the Fuller curve, the full-formula screening curve and the fuller curve are fitted to obtain a densest grading scheme.
Grading method of cement-base self-leveling mortar
The invention provides a grading method of cement-base self-leveling mortar. The method comprises the following steps: screening and analyzing sand; measuring the screening residue of each sieve, and respectively calculating a sub-screening residue weight percentage, an accumulated screening reside weight percentage and a passing rate of sand in different particle sizes; performing primary grading design on the sand; based on the primary grading design solution of the sand in the above scheme, calculating a value P, and drawing a particle grading curve; primarily setting a ratio of powder to aggregate and a maximum particle size of a Fuller curve, calculating a value B and a value Psd, and drawing a Fuller curve; comparing the particle grading curve with the Fuller curve, repeating the above steps if the difference is relatively large, and obtaining a cement-base self-leveling mortar grading proportion when the particle grading curve is overlapped with the Fuller curve on three or more points. On the basis of the Fuller curve, the full-formula screening curve and the fuller curve are fitted to obtain a densest grading scheme.
Grading method of cement-base self-leveling mortar
ZHU HAIXIA (author) / LI YONGXIN (author) / WEI LEI (author)
2015-10-21
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2021