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日本宇都宫住友商品混凝土技术中心曾对掺入钢丝环的砂浆和混凝土的各种技术性能做了试验研究,并将试验结果同钢纤维混凝土做了比较。试验所用钢丝环是由退火钢丝手工制成的三元空间体,如图所示,用d×D-n表示(d为钢丝直径,D为环径长向尺寸,n为环数)。砂浆试块的钢丝环尺寸选用0.8毫米×8毫米-3环和0.8毫米×8毫米-4环两种。
The Sumitomo Commodity Concrete Technology Center of Utsunomiya, Japan, has conducted various experiments on various technical properties of mortars and concretes incorporating steel wire rings, and compared the test results with steel fiber concrete. The wire loop used in the test is a three-dimensional space body made by hand from annealed steel wire. As shown in the figure, it is represented by d×D-n (d is the wire diameter, D is the length of the loop diameter, and n is the number of rings). The size of the wire loop of the mortar test block is 0.8 mm×8 mm-3 ring and 0.8 mm×8 mm-4 ring.