Testing Rapidcrete HD for Shotcrete Delivery

CPD Construction Products目前生产一种名为Rapidect HD的产品，这是一种快速凝结**高强度封顶和修补材料，由特殊的预混合、高强度和耐磨**骨料和快速凝结水泥组成。这种混凝土的问题是，在地下采矿**行业，时间非常宝贵，当工人不得不为矿山**隧道底板搅拌和浇注混凝土时，产量也会受到限制。将快速混凝土HD作为可喷射混凝土(也称为喷射混凝土)交付，可以为CPD及其行业合作伙伴提供节省时间的解决方案。**在采矿业，喷射混凝土作为地面支持的主要手段，通过将其喷洒到地下隧道的背面和**墙壁上；在行业中称为漂移。喷雾的力量将空气从混合物中击出，使其比传统浇筑的混凝土更稠密。此外，有争议的是，喷射混凝土可能是**最有效的混凝土安装方法，它不仅在结构上优越，而且在形状、大小和**用途上也是无限的。**CPD面临的挑战是，尽管这种新骨料在工厂、仓库、装货码头、冷藏室和**采矿业**的混凝土地面上传统浇注时效果良好，但当它以高速喷洒在表面上时，它将如何工作尚不清楚。如果Rapidstrate HD被证明是一种可行的喷射混凝土产品，它将为CPD在采矿业打开巨大的机会。

CPD Construction Products currently manufactures a product known as Rapidcrete HD, which is a fast setting,**high strength topping and patching material consisting of specialty pre-blended, high strength, and abrasion**resistant aggregate and rapid setting cement. The problem with this concrete is that, in the underground mining**industry, time is at a premium and production is limited when workers have to mix and pour concrete for mine**tunnel floors. Delivering Rapidcrete HD as sprayable concerete, also known as shotcrete, could provide CPD and**its industry partners with a time-saving solution.**In the mining industry, shotcrete is used as a primary means of ground support by spraying it onto the back and**walls of an underground tunnel; known in the industry as drifts. The force of the spray knocks the air out of the**mixture, making it denser than conventionally poured concrete. Moreover, it is arguable that shotcrete is probably**the most effective method to install concrete that is not only structurally superior but limitless in shape, size and**use.**The challenge confronting CPD is that, while this new aggregate works well when traditionally poured for concrete**floors in factories, warehouses, loading dock areas, cold storage rooms, and approach pads and drifts in the**mining industry, it is unclear how it will work when sprayed on a surface at high velocity. If Rapidcrete HD is**proven viable as a shotcrete product it would open up significant opportunities for CPD in the mining industry.