the greening of the concrete industry
DESCRIPTION
used on one of my coursesTRANSCRIPT
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The Greening of the Concrete Industry
郑琨鹏0920060036
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混凝土产业面临的环境问题及其原因分析
绿色混凝土的基本理念
当前在此领域的一些尝试
现阶段存在的问题以及今后的发展方向
![Page 5: The greening of the concrete industry](https://reader035.vdocuments.net/reader035/viewer/2022081417/556a907bd8b42ac9298b4db6/html5/thumbnails/5.jpg)
每生产一吨的 Portland 水泥释放出两吨的二氧化碳
生产混凝土时需要大量的水
废弃的混凝土总量巨大
Problems
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水泥生产方面:
生产工艺相对比较成熟
用其他的胶凝材料替换混凝土中所使用的水泥
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用水量控制方面:
由于用水量直接影响混凝土的强度等关键因素,因此控制用水量的研究比较深入,解决方法也不少
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固体废料方面:
废弃的混凝土处理困难,对环境影响较大
![Page 9: The greening of the concrete industry](https://reader035.vdocuments.net/reader035/viewer/2022081417/556a907bd8b42ac9298b4db6/html5/thumbnails/9.jpg)
混凝土产业面临的环境问题及其原因分析
绿色混凝土的基本理念
当前在此领域的一些尝试
现阶段存在的问题以及今后的发展方向
![Page 10: The greening of the concrete industry](https://reader035.vdocuments.net/reader035/viewer/2022081417/556a907bd8b42ac9298b4db6/html5/thumbnails/10.jpg)
废弃方面
生产方面
使用方面
What's Green Concrete?
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节约资源、能源;
不破坏环境,更应有利于环境;
可持续发展,保证人类后代能健康、幸福地生存下去。
其中,第二条是第三条的保证。
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节约资源、能源;
节约资源、能源;
保护环境
Problems
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混凝土产业面临的环境问题及其原因分析
绿色混凝土的基本理念
当前在此领域的一些尝试
现阶段存在的问题以及今后的发展方向
![Page 15: The greening of the concrete industry](https://reader035.vdocuments.net/reader035/viewer/2022081417/556a907bd8b42ac9298b4db6/html5/thumbnails/15.jpg)
竹子的纤维分布及其组成使得它具有平行方向的高强度,垂直方向的低强度
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从混凝土和易性,抗压强度,氯化物渗透性多方面进行了评价,并且与添加硅灰以及空白的同等级混凝土的数据进行了比较
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Key Word: carbondioxide emission, Geopolymer
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Key Words: Compressive strength,Modulus of elasticity,Abration resistence
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Key Words: Carbonation , chloride penetration.
![Page 22: The greening of the concrete industry](https://reader035.vdocuments.net/reader035/viewer/2022081417/556a907bd8b42ac9298b4db6/html5/thumbnails/22.jpg)
混凝土产业面临的环境问题及其原因分析
绿色混凝土的基本理念
当前在此领域的一些尝试
存在的问题以及发展方向
![Page 23: The greening of the concrete industry](https://reader035.vdocuments.net/reader035/viewer/2022081417/556a907bd8b42ac9298b4db6/html5/thumbnails/23.jpg)
相关国家规范的缺失
环保 Or 经济效益?
相关技术也并不十分成熟
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Thanks