Mr. Wang Ruohong,director of the Energy Efficiency Management Center of the China Institute for Standardization, expressed in the "High-efficiency and Energy-saving Electric Appliance Promotion Quarter"t... Mr. Wang Ruohong,director of the Energy Efficiency Management Center of the China Institute for Standardization, expressed in the "High-efficiency and Energy-saving Electric Appliance Promotion Quarter"that compulsory labeling of energy efficiency will be continued in China on frequency-converting air-conditioners, gas heaters, electric heaters and electromagnetic ovens. By the end of the "11th Five Year", compulsory labeling of energy efficiency will be expanded to include 20 categories of products, including household appliances, automobiles, architecture, motors, and offices. Labeling in other industries will continue, but the number of levels will be reduced from the current five to three.……展开更多
Main performance of the cement grouting materials made up by Portland cement（PC） and sulphoaluminate cement（SAC） was investigated in this program, a kind of expanding agent（EA） which was mainly constituted by me...Main performance of the cement grouting materials made up by Portland cement（PC） and sulphoaluminate cement（SAC） was investigated in this program, a kind of expanding agent（EA） which was mainly constituted by metakaolin and alunite was utilized for the compensation of the shrinkage, the hydration products and micro structure of the grouting materials were researched by X-ray diffraction（XRD） and scanning electron microscopy（SEM）. The results showed that a high expansion rate of the grouting materials could be reached as the expanding agent mixed in 6% of PC mass; the addition of SAC in the S2（PC：SAC：EA=34：6：2.25） brought a further improvement of the expansion rate of the grouting materials, the analysis of XRD and SEM showed that due to the reaction of expanding agent and SAC in the grouting materials, more ettringite crystal was generated, which resulted in a higher early strength, the addition of SAC played an expansion and strength reinforcement role in the grouting materials.展开更多
文摘 Mr. Wang Ruohong,director of the Energy Efficiency Management Center of the China Institute for Standardization, expressed in the "High-efficiency and Energy-saving Electric Appliance Promotion Quarter"that compulsory labeling of energy efficiency will be continued in China on frequency-converting air-conditioners, gas heaters, electric heaters and electromagnetic ovens. By the end of the "11th Five Year", compulsory labeling of energy efficiency will be expanded to include 20 categories of products, including household appliances, automobiles, architecture, motors, and offices. Labeling in other industries will continue, but the number of levels will be reduced from the current five to three.……
基金Funded by the National Key Technology R&D Program in the12th Five Year Plan of China(No.2011BAE14B06)the National High Technology ResearchDevelopment Program of China(No.2015AA034701)
文摘Main performance of the cement grouting materials made up by Portland cement（PC） and sulphoaluminate cement（SAC） was investigated in this program, a kind of expanding agent（EA） which was mainly constituted by metakaolin and alunite was utilized for the compensation of the shrinkage, the hydration products and micro structure of the grouting materials were researched by X-ray diffraction（XRD） and scanning electron microscopy（SEM）. The results showed that a high expansion rate of the grouting materials could be reached as the expanding agent mixed in 6% of PC mass; the addition of SAC in the S2（PC：SAC：EA=34：6：2.25） brought a further improvement of the expansion rate of the grouting materials, the analysis of XRD and SEM showed that due to the reaction of expanding agent and SAC in the grouting materials, more ettringite crystal was generated, which resulted in a higher early strength, the addition of SAC played an expansion and strength reinforcement role in the grouting materials.
