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Adsorption Mechanism of Polycarboxylate-Based Superplasticizer in CFBC Ash-Portland Cement Paste宋远明1,GUO Chuanchuan1,QIAN Jueshi2,LIU Yiquan3,CAO Aizhi11. School of Environmental and Materials.... The adsorption mechanism of polycarboxylate superplasticizer in CFBC ash-Portland cement paste was investigated by ultraviolet-visible spectrophotometer, and the conception of "invalid adsorption site......
and Engineering,Zhejiang University摘 要:<正>In this work we introduce recently developed silicon-paste-enabled p-type doping for silicon.Boron-doped silicon nanoparticles are synthesized by a plasma approach.They are then dispersed in solvents to form silicon paste. Silicon paste is screen-printed at the surface of silicon wafers.By annealing,boron atoms......
Microscopic Pore and Filling Performance of Coal Gangue Cementitious Paste王忠昶1,2,WANG Zechuan1,ZHAO Wenting11. School of Civil and Safety Engineering,Dalian Jiaotong University2. The State Key... gangue cementitious paste, the slump, divergence, stratification, bleeding, setting time and mechanical strength with the change of fine gangue rate were studied on the basis of keeping the amount......
Dominant Factors on the Early Hydration of Metakaolin-Cement Paste水中和School of Materials Science and Engineering,Wuhan University of Technology摘 要:The dominant factors during early hydration process of cement paste containing 10% metakaolin replacement (MK10) and 10% kaolin replacement (K10) are investigated in comparison to neat cement paste (NCP......
Effects of Carbonation on Micro Structures of Hardened Cement Paste柳俊哲,YAO Senyuan,BA Mingfang,HE Zhimin,李玉顺Faculty of Architectural,Civil Engineering and Environment,Ningbo University摘 要:In order to investigate the effects of carbonation on the microstructure of cement concrete,the carbonation depth and microstructure of cement paste with 0.3,0.4......
Rheological Properties of Self-compacting Concrete Paste Containing Chemical Admixtures马保国1,王慧贤1,21. State Key Laboratory of Silicate Materials for Architectures ,Wuhan University of Technology2... for the filling layer of CRTSⅢ plate ballastless track, which needs excellent workability. The rheological properties of SCC cement paste containing chemical admixtures (CA) such as polycarboxylate-based......
Self Similarity of the Spherical C-S-H Particle in Cement Paste沈卫国摘 要:Cement paste with low water/cement ratio of 0.3 was observed using AFM. It is found that C-S-H has self similarity trait from scanning scale 20 μm×20 μm down to 300 nm×300 nm, and the feature of C-S-H at large scale is very similar to those smaller scales. It can be concluded that C-S......
The Crack of Harden Cement Paste Observed with Multi-technique沈卫国摘 要:The shrinkage of the cement paste with low water-cement ratio at different relative... with AFM between two C-S-H nano particles.The observation by multi technique at multi scale indicated that the shrinkage was increase with the decrease of the humidity due to the increase......
RELATIONSHIP OF 3CaO·3Al2O3·SrSO4 PASTE STRUCTURE AND ITS STRENGTH阎培渝,杨文言摘 要:<正>The hydration process and the paste structureof a new cementitious mineral 3CaO·3Al2O3·SrSO4 have beeninvestigated in the presence of different sulphates.It is difficult to form hydrates with SrSO4,but the paste is toughened greatly by SrSO4 microcrystal precipitates......
Effect of curing humidity on performance of cemented paste backfillDi Wu,Run-kang Zhao,Chao-wu Xie,Shuai LiuSchool of Energy and Mining Engineering, China University of Mining and Technology-Beijing摘 要:Cemented paste backfill(CPB), a mixture of tailings, binder, and water, is widely and extensively used for the recovery of mineral resources......
