2010年,中国进入中等偏上收入国家行列,开始向经济发展新常态过渡。经济新常态下,针对有人质疑中国能够跨越“中等收入陷阱”的悲观情绪,习近平一再指出,支撑中国经济发展的
One of the main problems associated with concrete during its production to the cast-in-place and service life is its continuous shrinkage.The phenomenon of
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The construction sector consumes huge quantities of raw materials and generates large amounts of waste.This is the very reason that researchers and engineer
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这是座被战火蹂躏多年的都市,损毁严重的高楼上遍布大小弹孔.幸存的人们绕过喇叭口状巨型弹坑,脸上露出极度疲惫的神情,似乎对今后的生活不再抱有希望.只有那些跟在母亲身后
Commercial utilization of a superplasticizer is always a combination of price and performance.In last decades,petroleum-based polycarboxylate superplasticiz
The objective of this paper is to examine the rheological properties of cement paste with lower water-binder ratio (W/B) of 0.25.The electrochemical techniq
In the field of concrete admixture, the polycarboxylate superplasticizer (PCE) is usually synthesized at 60-80℃.In this study, a PCE was successfully synth
Naphthalene sulfonate formaldehyde (NSF) condensate plasticizer performs negative effect on the dispersing property in cement paste containing PCE superplas