Abstract
Corn straw fiber brick is environmental friendly. Its screw-holding power is important to hang light goods in the interior partition. Single and multi-factor methods are applied to study the screw-holding power. Surface-screw holding power is affected successively by corn straw fiber, cold press time and calcium hydroxide. Surface and side-screw holding powers are affected extremely by corn straw fiber, surface-screw holding power is affected significantly by cold press time, and side screw holding power is affected extremely significantly by cold press time. When calcium hydroxide is 1924 g, corn straw fiber is 377 g and cold press time is 6 min, surface screw-holding power of brick is 323.30 N and side screw-holding power is 278.20 N at the 19.12% of moisture content. The conclusions provide a theoretical basis for improving the screw holding power of the brick.
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