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生产混凝土农房构配件的企业大部分都采用冷拔低碳钢丝作为预应力混凝土擦条、望板、挂瓦板、多孔板、小梁等构配件的配筋材料,但在使用过程中普遍存在着两个较为突出的问题:一是构件在自然养护条件下,达到剪丝强度的养护周期较长,甚至蒸汽蒸养的构件亦有达不到剪丝强度要求的情况,生产企业一般采用加大水泥用量配制超标号混凝土的办法来解决这一问题,因而造成了材料浪费,或是延长了生产周期,直接影响了劳动生产率;二是因冷拔低碳钢丝的表面光滑,与混凝土粘接能力较差,应用
Most of the enterprises that produce concrete housing accessories use cold-drawn low-carbon steel wire as reinforcing materials for pre-stressed concrete squeegee strips, slats, hanging tiles, perforated plates, trabecular beams, etc., but they are widely used during use. There are two more prominent problems: First, under the conditions of natural curing, the maintenance cycle for achieving the shear strength is long, and even steam-cured components do not meet the requirements for shear strength. Manufacturers generally adopt To increase the amount of cement used to formulate super-labeled concrete to solve this problem, thus causing material waste, or prolonging the production cycle, directly affecting labor productivity; Second, due to the smooth surface of cold-drawn low-carbon steel wire, and concrete adhesive Poor connection ability, application