T/DASI 003-2019 Cement-based adhesive for ceramic tiles

Scope

Scope: This standard specifies the terms and definitions, classification, designation and marking, general requirements, technical requirements, test methods, inspection rules, and packaging, marking, transportation, and storage of cement-based adhesives for ceramic tiles. This standard applies to adhesives for interior and exterior walls and floors; Main technical content: 1. Performance indicators refer to the strength indicators in the original industry standard JC/T 547-2017 "Ceramic Tile Adhesives". The products in this standard are divided into standard type, flexible type, and special type cement-based adhesives. For all three types, the 28-day tensile adhesive strength shall be greater than 0.5MPa for standard and special types, and greater than 1.0MPa for flexible types. Additionally, considering issues such as the long application period of the standard products, lagged testing of indicators, and loopholes in product quality monitoring, this standard adds the indicators of "7-day tensile adhesive strength, 7-day air-drying time of 20 minutes, and 7-day flexural and compressive strength". These indicators aim to provide an early, rapid, and reasonable performance evaluation of the products upon factory release, while the 28-day strength remains unchanged as the complete value of the performance indicators, in accordance with JC/T 547-2017. According to the development law of conventional cement-based adhesives, the 7-day strength value corresponds to 70-80% of the 28-day strength value. This standard determines the various performance indicators of adhesives after 7 days based on this law. The original industry standard JC/T 547-2017 only specified the tensile bond strength of cement-based adhesives and did not require the flexural and compressive strength of adhesives. This standard defines the shrinkage rate, water absorption, and flexural and compressive strength of special-type ceramic tile adhesives, which are combined products of ceramic tile

Development Information

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