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耐磨彩色混凝土地面质量通病之产品经一段时间后出现大裂缝

发布时间:2019-03-18 浏览次数:136
耐磨彩色混凝土地面质量通病之产品经一段时间后出现大裂缝
原因剖析:此类问题同普通混凝土,主要缘由有三。混凝土强度没有到达设计请求。基层施工质量单薄或下沉形成断板。养护不够或没有及时切割伸缩缝。

Cause analysis: There are three main reasons for this kind of problem as common concrete. Concrete strength did not meet the design requirements. The construction quality of base course is thin or sinks to form broken board. Insufficient maintenance or not cutting expansion joints in time.



耐磨彩色混凝土地面质量通病之产品经一段时间后出现大裂缝



预防措施:严厉控制混凝土质量和施工工艺,保证强度。混凝土施工行进行基层验收,如不合格则不能停止彩色混凝土施工。严厉依照相关技术请求切割伸缩缝,当水泥混凝土抗压强度到达设计强度30%左右时应停止切缝作业,也可在施工现场用试切法来肯定适宜的切缝时间,如天气酷热或温差较大,可先在中间停止跳切,然后依次补切,以防混凝土板未切先裂。

Preventive measures: Strictly control the quality of concrete and construction technology to ensure strength. The construction of concrete should be checked and accepted at the base level. If it is not qualified, the construction of coloured concrete can not be stopped. Strictly cut expansion joints according to relevant technical requirements, when the compressive strength of cement concrete reaches about 30% of the design strength, it should stop the joint cutting operation. It can also confirm the appropriate time of joint cutting by trial cutting method at the construction site. If the weather is hot or the temperature difference is large, skip cutting can be stopped in the middle first, and then repair cutting in order to prevent the concrete slab from cracking before cutting.



耐磨彩色混凝土地面质量通病之产品经一段时间后出现大裂缝



关于彩色混凝土路面脱模粉可以停止水养前的24~36h 以内的养护,脱模粉肃清后可用水养、覆膜养护或用养护剂养护,但是不能用草袋之类的器物停止蓄水养生。彩色混凝土由其工艺特性决议,其质量是经过工人的手工操作一次性成活,因而只要经过长期培训和工程理论的施工队伍才干真正做到工序衔接杂乱无章,在混凝土逐步硬化的有限时间内做好每一个细节,保证施工质量,除上述关键技术外,普通混凝土施工中所请求的振捣、抹面、伸缩缝和养护等技术环节都缺一不可,因此操作应愈加标准和充沛,才干到达预期的效果,防止质量通病。

For the color concrete pavement demoulding powder can stop the maintenance within 24-36 hours before water curing. After removing the demoulding powder, it can be maintained with water, film or curing agent, but it can not stop the water conservation with straw bags and other appliances. Colored concrete is determined by its technological characteristics, and its quality is one-time survival through manual operation of workers. Therefore, only after long-term training and engineering theory can the construction team truly achieve the chaotic connection of working procedures, complete every detail within the limited time of concrete gradual hardening, and ensure the construction quality. In addition to the key technologies mentioned above, in the construction of ordinary concrete, please. The technical links such as vibration, finishing, expansion joint and maintenance are indispensable. Therefore, the operation should be more standard and abundant so as to achieve the desired effect and prevent common quality problems.




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