價(jià)格: 電議
物流: 河北 衡水市 桃城區(qū)| 賣(mài)家支付運(yùn)費(fèi)
可銷(xiāo)售總量: 1500件
手機(jī): 14730571583 郵箱: 2187589472@qq.com
傳真: 0318-8517583 地址: 河北 衡水市
[熱鍍鋅涵管 波紋管 衡水涵管 東北 東北涵管 山西陜西涵管]
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手機(jī):
Investigation of defects and causes If the corrugated tube is not compacted, the steel winch will be corroded, and the prestress will be lost in advance, which will shorten the bridge life. The formation defect of corrugated pipe is mainly that the cement slurry is not filled with the entire corrugated pipe, resulting in a large crescent-shaped gap at the top of the corrugated tube, and even a phenomenon of dew. Another phenomenon is that the strength of the slurry is not enough to make the slurry, steel winch, and concrete beam form a unified whole. The main reasons for this quality defect are: 1. The improper selection of cement slurry and additive resulted in a large ratio of cement ash. 2. When the cement mud is prepared, the fluidity and water rate do not meet the requirements, so that some of the bellows are occupied by the water produced, and the water is absorbed or evaporated, resulting in voids. 3. The construction staff's grouting operation is not correct, the grouting speed is too
注冊(cè)資金:5000萬(wàn)以上
聯(lián)系人:周朝陽(yáng)
固話(huà):0318-8517583
移動(dòng)手機(jī):14730571583
企業(yè)地址:河北 衡水市 桃城區(qū)