Gypsum board water absorption rate detection method

• Main Authors: ZHOU QUANGUANG, WANG YONGSHENG, LIU JIANGFENG, BAI HONGCHENG
• Format: Patent
• Language: Chinese; English
• Published: 04.05.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a gypsum board water absorption rate detection method, which comprises: 1) cutting a gypsum board to a sample size, and conducting drying to a constant weight, or cutting a gypsum board just out of a drying machine on a production line to a dry size; 2) cooling the gypsum board to room temperature; 3) weighing the gypsum board cooled to the room temperature in the step 2) to obtain a mass G1; (4) immersing the weighed gypsum board which is cooled to the room temperature into a constant-temperature water bath box, wherein the water bath temperature is constant; and 5) taking out the gypsum board in the step 4), removing moisture on the surface of the gypsum board, weighing the weight G2 of the gypsum board, and substituting the weight G2 into a formula (1) to obtain the water absorption rate of the gypsum board, wherein the formula (1) is that the water absorption is equal to (G2-G1)/G1. 本申请公开了一种石膏板吸水率的检测方法，所述检测方法包括以下步骤：1)将石膏板裁切至试样尺寸，烘干至恒重，或将生产线上刚出干燥机的石膏板裁切至干燥尺寸；2)将所述石膏板冷却至室温；3)将步骤2)中冷却