【天学网:双语】超高性能混凝土(UHPC)

UHPC
超高性能混凝土(UHPC)是一种性能优良的新型混凝土路面材料。它也被称为活性粉末混凝土,简称RPC。这种混凝土强度高,韧性好高性能混凝土的应用实例,抗压强度高达29000磅/平方英寸,抗弯强度高达7000磅/平方英寸。它主要是由一系列粉末、高效减水剂、有机材料等组成。最常见的成分包括不同比例的水、水泥、石英粉、硅粉、细硅砂、高效减水剂和有机或钢纤维。 #
Ultra-high , or UHPC, is a new class of - . It is also known as , or RPC for short. This of is and , up to 29,000 psi (per inch), and up to seven psi. It is by a list of , , , and more. The most of water, , flour, fume, fine sand, high-range water , and or steel .
UHPC的好处 #
在采购UHPC时高性能混凝土的应用实例,您通常会把它们放在一个预先混合好的袋子里,当然不包括水。它通常因其变形和支撑柔性和拉伸荷载的能力而受到追捧,即使在早期开裂阶段之后也是如此。由于超高性能混凝土几乎可以自行浇筑或干浇,因此这些质量以及更多的优点使得施工应用更加简单,因为无需钢筋。 #
那么,是什么让超高性能混凝土如此有用和有效呢?它是细粉(每粒不超过600微米)和诱导的化学反应的结合。结果,UHPC呈现出一个小的、不连续的孔结构,具有最终的致密性。 #
When UHPC, you will get them in a pre- bag of all the above- , the water of . It is -after for its to and and loads, even after its early age phase. These and more make by the need of steel , and ultra-high has the to self-place or dry cast. #
So what makes ultra-high so and ? It’s the of fine (no than 600 per grain) and the . As a , UHPC a small, pore with .
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UHPC应用 #
UHPC最常见的现代应用包括桥梁(桥梁梁、桥面、桩等)、建筑立面、海锚、桥墩、抗震柱和结构、公路基础设施、风力涡轮机塔架、钢筋连接器(桥梁、建筑物等)等的施工。 #
The most -day for UHPC the of ( , decks, piles, etc.), , , piers, and , , wind , (, , etc.), and much more. #
UHPC市场 #
国内UHPC目前主要定位于中高端市场,它比一般的普通混凝土材料更具优越性,这种UHPC材料可以运用于双曲面建造,不需要钢筋的支撑,弯曲性能好,结构支撑牢固。
At , UHPC in China is in the and high-end . It has more than . This kind of UHPC can be used in . It has good and firm . #