slump cone for testing slump of concrete

摘要

PURPOSE: A slump cone for concrete slump test is provided to improve reliability of slump test for concrete. CONSTITUTION: At least a longitudinal part of a slump cone(4) is formed by transparent material to be a transparent window(41). A scale(40) is longitudinally formed on the transparent window. The slump cone, cleaned by a wet floor cloth, is placed on a surface plate. The slump cone is supported and fixed by foot steps(22), formed on a lower part of the slump cone. Concrete is injected into the slump cone by fixed amount checked through the transparent window and hardened by hardening bar(3). The slump cone is vertically removed by using handles(21). Slump is measured by calculating difference between height of the slump cone and a specimen.