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速凝剂是喷锚支护工程必不可少的一种外加剂,它可使混凝土或砂浆在几分钟内就由塑性状态变为固态,在喷射混凝土或喷射砂浆的工程中能使喷射物料在被喷表面迅速凝结硬化而不脱落。井巷、隧道采用喷锚支护新技术可大大加快工程的建设进度,节省劳力、节约木材和混凝土用量,并可减少地下工程的开挖量。此外,速凝剂在堵漏、修补、抢修工程中也常使用。与国内其它类型的速凝剂相比,TK—1型速凝剂具有如下优点: 1.成本显著降低。其原料成本仅为红星1型速凝剂原料成本的40％左右; 2.凝结速度快。根据水泥种类的不同,速凝剂的掺加量为水泥重量的3—6％时,
Accelerating agent is an indispensable additive for the spray-anchor support project. It can make the concrete or mortar change from a plastic state to a solid state in a few minutes. It can make the spray material in the project of spraying concrete or spraying mortar. The sprayed surface rapidly condenses and hardens without falling off. The new technology of spray-anchor support in wells and tunnels can greatly accelerate the construction progress of the project, save labor, save the amount of wood and concrete, and reduce the amount of excavation of underground projects. In addition, quick-setting accelerators are often used in plugging, repairing and repairing projects. Compared with other domestic types of accelerators, TK-1 type accelerator has the following advantages: 1. The cost is significantly reduced. The raw material cost is only about 40% of the raw material cost of Red Star 1 accelerator; 2. The speed of condensation is fast. According to the type of cement, when the dosage of quick-setting agent is 3-6% of the cement weight,