钢纤维是一种新、高性能的钢纤维品种。钢纤维道路的配合比设计方法大体与普通混凝土相同,不同点为：强度双控标准（抗压强度和弯拉强度）；钢纤维掺量根据设计要求的弯拉强度确定；单位用泥杆 保定古筝 塑料增韧剂 拱形护坡模具 保定空调维修 托辊生产线水量和砂率与纤维掺量有关,每掺加0.5%（体积率）钢纤维,单位用水量增加6kg,砂率增大2%。
Steel
fiber is a new and high-performance variety of steel fibers. The mix
design method of steel fiber road is generally the same as that of
ordinary concrete, with the following differences: strength dual control
standards (compressive strength and flexural tensile strength); The
amount of steel fiber is determined based on the bending and tensile
strength required by the design; The unit water consumption and sand
rate are related to the fiber content. For each 0.5% (volume ratio)
steel fiber added, the unit water consumption increases by 6kg and the
sand rate increases by 2%.
钢纤维混凝土具有与普通混凝土一样的搅拌、运转和施工性能,纤维在混凝土中不会结球,分布均匀,可在商品混凝土搅拌站进行生产并能用于泵送施工。铣削钢纤维混凝土的早期坍落度损失较大,30分钟损失32%,2小时损失42%。钢纤维混凝土的实际工作性优于相同的坍落度的普通混凝土。钢纤维混凝土具有良好的材料性能,与普通混凝土相比,其抗压强度提高2～20%；弯拉强度提高20～50%；劈裂抗拉强度提高20～40%；耐磨性能提高40%左右,其物理力理性能****可以满足城市道路工程及检查井盖等配套构件需求技术指标。钢纤维粗糙而洁净的表面,能与混凝土中的水泥浆体牢固的结合,这是铣削钢纤维提高混凝土各种性能的根本原因。
Steel
fiber reinforced concrete has the same mixing, operation, and
construction performance as ordinary concrete. The fibers do not
agglomerate in the concrete and are evenly distributed. It can be
produced in commercial concrete mixing plants and used for pumping
construction. The early slump loss of milled steel fiber reinforced
concrete is significant, with a loss of 32% in 30 minutes and 42% in 2
hours. The actual workability of steel fiber reinforced concrete is
better than that of ordinary concrete with the same slump. Steel fiber
reinforced concrete has good material properties, and its compressive
strength is increased by 2-20% compared to ordinary concrete; Increase
bending and tensile strength by 20-50%; Increasing splitting tensile
strength by 20-40%; The wear resistance is improved by about 40%, and
its physical and mechanical properties can meet the technical
requirements of supporting components such as urban road engineering and
manhole covers. The rough and clean surface of steel fibers can firmly
bond with the cement slurry in concrete, which is the fundamental reason
for milling steel fibers to improve various properties of concrete.