METHOD FOR MEASURING ADMIXTURE TO BE USED AT READY-MIXED CONCRETE MANUFACTURING PLANT AND MEASUREMENT DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a method which enables easy correction of the measurements of various kinds of concrete materials, especially an admixture during manufacturing the ready-mixed concrete, even when the measurements exceed a tolerable error range.;SOLUTION: This measurement device has a release aperture 6 for releasing the measured admixture to a kneading water measurement vessel or a mixer, and a sampling aperture 7 for sampling the admixture, arranged in freely opening/closing manner, at the lower end part of an admixture measurement vessel 2. When the measurements of the admixture exceed a preset tolerable error range at measuring of the admixture, the sampling aperture 7 is opened and the loss in weight of the admixture is measured while sampling the admixture from the admixture measurement vessel 2. Next, as the measurements of the admixture fall within the tolerable error range, the sampling aperture 7 is closed and the specified amount of the admixture is determined by measurement. Thus, it is possible to easily correct a measurement error when it occurs during measuring the admixture.;COPYRIGHT: (C)2011,JPO&INPIT