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首页> 外文期刊>Journal of Solid Waste Technology and Management >CHEMICAL PROPERTIES OF ALKALI ASH MATERALS
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CHEMICAL PROPERTIES OF ALKALI ASH MATERALS

机译：碱灰材料的化学性质

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摘要

Annually, the United states produces some 90 million tons of ash, of which 55 million tons is fly ash. Only 27% of this large quantity of fly ash gets reused or recycled. The remaining 73% are dumped into landfills. Alkali Ash Material (AAM) is a novel construction material that converts fly ash into a variety of construction materials. The hardened AAM material gains up to 11,000 psi compressive strength and flexural strength (up to 1,200 psi) in two days that highly engineered ultra high strength concrete takes in months to gain. AAM also resist the corrosive impact of sulfuric acid far better than ordinary Portland cement concrete. Exposing ordinary cement concrete to a pH less than 3 causes severe damage in a short time, while AAM can resist pH as low as 0.5 for extended periods of time. AAM can be used for many municipal and industrial applications such as pipes, sumps, tanks, etc. AAM not only can solve problems that arise when infrastructure is subjected to aggressive conditions, but also helps the environment by recycling a large quantity of fly ash that otherwise would have been land filled.
机译：美国每年生产约9000万吨的粉煤灰，其中5500万吨为粉煤灰。这种大量的粉煤灰中只有27％被重新利用或回收。剩余的73％被倾倒入垃圾填埋场。碱灰材料（AAM）是一种新型建筑材料，可将粉煤灰转化为多种建筑材料。硬化的AAM材料在两天内获得高达11,000 psi的抗压强度和弯曲强度（高达1200 psi），而高度工程化的超高强度混凝土则需要数月才能获得。 AAM还可以抵抗硫酸的腐蚀作用，远胜于普通的波特兰水泥混凝土。使普通水泥混凝土的pH值小于3会在短时间内造成严重损坏，而AAM可以长时间抵抗pH值低至0.5的情况。 AAM可以用于许多市政和工业应用，例如管道，集水坑，水箱等。AAM不仅可以解决基础设施遭受恶劣环境影响时出现的问题，而且还可以通过回收大量粉煤灰来保护环境。否则会被填满。

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