T/WHWX 005-2024 Active

Main technical content: 1. Uniformity: Consistency with the terminology and technical requirements of the relevant standard GB/T 35159 "Quick-setting Agents for Sprayed Concrete"; 2. Coordination among standards: Consistency with the current product standard GB/T 35159 "Quick-setting Agents for Sprayed Concrete"; 3. Advancedness: Compared with the national standard GB/T 35159 "Quick-setting Agents for Sprayed Concrete", this standard reduces the dosage range of liquid alkali-free quick-setting agents, increases the requirements for chloride ion, the 1-day compressive strength of mortar, and the retention rate of mortar and 90-day compressive strength, and adds new requirements for fluoride ion, the 6-hour strength of mortar, and the 8-hour compressive strength of concrete. It can accelerate the construction progress in special environments (such as the Sichuan-Tibet Railway in high-altitude areas), save resources, and respond to the national call for green development. It fully demonstrates the advancedness of standard-setting.