2Yung B,Kim G I.The adsorption behavior of PNS superplasticizer and its relation to fluidity of cement paste[J].Cement and Concrete Research,2000,30(1):887-893.
3水质标准汇编组,中国标准出版社第二编辑室.水质标准汇编[M].北京:中国标准出版社,2005.
4Bloch S.Seeondary porosity in sandstones:Significance, origin, relationship to subaerial unconformities, and affect on predrill reservoirquality prediction [A].In:Wilson M D,ed.R.eservoir qualify assessment and prediction in elastics rocks [C]SEPM shore Course. 1994,30:136-159.
