Given the toxic impact of modern coal fly ash on aquatic ecosystems, the scientists suggest that the massive coal conflagration may have created toxic Marine conditions the world over.
现代的煤灰给水生态系统造成了有毒影响,科学家们表示,大量的煤炭燃烧也许已经造成了全球范围的有毒的海洋环境。
Canadian geologists have found evidence of coal char — "remarkably similar to modern coal fly ash" in their own words — in ancient Arctic rocks.
加拿大地质学家们在古老的北极岩石中发现了煤炭的证据,“象极了现代的煤灰”这是他们的原话。
Meanwhile, smoke continues to pour from the power station chimneys and lorries shuttle backwards and forwards, taking away the fly ash to be mixed into cement at the neighbouring Ambuja factory.
与此同时,电站烟囱继续在排着浓烟,往来的卡车装走煤灰运到附近Ambuja工厂里和水泥搅拌。
Fly ash uranium sometimes leaches into the soil and water surrounding a coal plant, affecting cropland and, in turn, food.
浮尘中含有的铀有时会溶入煤电厂周围的土壤和水体中,影响农田,进而影响食物。
Burning coal is nasty business, concentrating all kinds of toxic metals and resulting in potentially deadly fly ash.
烧煤是一件危害极大的事,释放各种有毒金属,并导致潜在的致命灰尘。
Fly ash is also disposed of in landfills and abandoned mines and quarries, posing a potential risk to people living around those areas.
废弃物填埋场、废矿和露天矿场也产生浮尘,对生活在周遭的人们产生潜在的威胁。
The U.S. Geological Survey (USGS) maintains an online database of fly ash-based uranium content for sites across the U.S..
美国地质调查局(usgs)拥有一个全美浮尘铀含量的在线数据库。
Flue gas containing hard grain of fly ash flow relative to the wall, on the wall wear called impact wear, also known as erosion. erosion.
含有硬粒飞灰的烟气相对于管壁流动,对管壁产生磨损称为冲击磨损,也称冲蚀。冲蚀。
Effect of fly ash on the workability, strength and hydration heat of high belite cement and concrete.
粉煤灰对高贝利特水泥和混凝土的工作性、强度及水化热的影响。
McBride and his co-authors estimated that individuals living near coal-fired installations are exposed to a maximum of 1.9 millirems of fly ash radiation yearly.
McBride和合作者估计生活在煤电厂附近每年暴露在最高达1.6毫雷姆的浮尘放射性中。
At one extreme, the scientists estimated fly ash radiation in individuals' bones at around 18 millirems (thousandths of a rem, a unit for measuring doses of ionizing radiation) a year.
在极端情况下,科学家估计浮尘的放射性在个人的骨骼中的积累可以达到每年18毫雷姆(千分之一雷姆,衡量电离辐射剂量的单位)。
This paper presents an experimental study on acoustic agglomeration of coal-fired fly ash at low frequencies.
通过实验研究了低频下燃煤飞灰的声波团聚。
This paper introduces the mix proportion of high fly ash content concrete instead of 30% cement with fly ash and some experiment results of the test examples in laboratory.
介绍了在水泥混凝土中,采用粉煤灰替代30 %水泥的高掺量粉煤灰混凝土的配合比设计,以及试件力学性能的室内实验结果。
The recently completed great consultative projects arduded stlicate fly ash lightweight black wet grindign fly ash cemetn without plaster and its products.
近期主要完成的重大咨询项目有硅酸盐粉煤灰轻质砌块,湿磨粉煤灰无熟料水泥及其制品。
The experiment results show that that the elastic modulus is reduced when fly ash only was added to RAC and present a significant difference with the rate of fly ash and slag content.
试验结果表明:粉煤灰单掺会降低再生骨料混凝土的弹性模量,粉煤灰与矿渣双掺对弹性模量的影响随两者组合比例不同而有显著差异。
Based on analyzing the eruption and tiny aggregate effect of fly ash, the influence of fly ash on the shrinkage fissure of concrete is studied, caused by the plastic deformation, dry or temperature.
以粉煤灰的火山灰效应、微集料效应分析为基础,分析研究了粉煤灰对混凝土塑性收缩、干缩、自缩和温度收缩裂缝的影响。
The paper also presents some constructive opinions for research and use of fly ash concrete.
本文还对大掺量粉煤灰砼的研究及应用提出了一些建设性意见。
Analyze of micrograph and particle diameter distribution present that particle diameter of high-calcium fly ash distributes unequally.
显微图象及粉体颗粒粒径分布分析显示,高钙灰的颗粒分布呈不均质性;
Activator can enhance remarkably the activity of fly ash and accelerate secondary hydration reaction of high fly ash content concrete.
激发剂能显著提高粉煤灰的活性,加速高掺量粉煤灰二次水化反应。
The model of a factor that fly ash effects on carbonation resistance was found, effect of fly ash on the air infiltration coefficient is analyzed.
建立了单一粉煤灰影响因子模型,分析了粉煤灰掺量对混凝土空气渗透系数的影响。
In this paper the usability of a quarry dust limestone powder in concrete applications substituted for fly ash as mineral admixture is investigated.
为了有效利用石粉资源,本文对石灰岩石粉代替粉煤灰作混凝土矿物掺合料的可用性进行了研究。
Good compatibility with other admixture products, and expansive agent, air-entraining agent admixtures fly ash and such activities admixtures suitably, function complement each other, mutual arousal.
产品与其它外加剂相容性好,与膨胀剂、引气剂等外加剂及粉煤灰等活性掺合料相配合,功能相互补充、相互激发。
The research achievement of the embankment constructed with frost susceptibe a loose fine aggregate and fly ash and frost prevention are introduced.
主要介绍冰冻地区利用具有一定冻敏性的松散细集料粉煤灰修筑路堤及冻胀防治的研究成果。
If industry wastes lime, calcined gypsum and sulfate are grinded with the high-calcium fly ash, activity increases, soundness improves, and activity index can meets the demand for S95slag.
采用工业废石灰、煅烧磷及无机盐激发剂,加上短时粉磨处理以激发高钙灰,可显著改善其安定性,活性指标可达到S95矿渣粉水平。
In column experiment during 21 days, it was observed that the granulated fly ash could continuously remove the phosphorus under high hydraulic loading rate.
还进行了为期21天的连续过滤试验,发现滤床在高水力负荷条件下能持续地去除景观水中的磷。
Laboratory test showed that: In consideration of slump, the optimization content of the fly ash was around 30% or more than 30%.
试验结果显示:从坍落度方面考虑,粉煤灰的掺量应该在30%左右或大于30%为最佳。
Laboratory test showed that: In consideration of slump, the optimization content of the fly ash was around 30% or more than 30%.
试验结果显示:从坍落度方面考虑,粉煤灰的掺量应该在30%左右或大于30%为最佳。
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