A patent for fluorosilicic acid production by adsorption of silicon tetrafluoride with pressure water is described in the production of wet-process phosphoric acid or phosphate fertilizer.
介绍一种在湿法磷酸或磷肥生产过程中用水吸收四氟化硅制备氟硅酸的专利技术。
The reservoir has safely operated for12years since C 60 siliceous concrete used to line water release tunnel in1991and the abrasion in the base of tunnel has become decreased.
三屯河水库全年放水量中含沙量较大,水库放水隧洞在挟沙高速水流作用下,底部磨蚀严重,在采用几种材料衬护后都无法达到设计与安全运行,1991年采用C60硅粉混凝土对放水隧洞进行衬护,通过12a的运行,隧洞底部磨蚀量较小,运行可靠,达到设计要求,给水库安全防洪、排砂运行,保证灌溉带来了良好的经济效益。
Influence of hybrid polypropylene fibers on chloride ion permeability of silica fume concrete;
聚丙烯纤维对硅灰混凝土氯离子渗透性能的影响
As greeen material,silica fume concrete can economize cement and improve the environment,thus bringing about a healthy advance in concrete and architectural engineering.
硅灰混凝土为绿色混凝土 ,它不仅节约了水泥熟料 ,而且改善了环境 ,大大促进了混凝土和建筑工程的健康发展。
Application of shrinkage-compensating silicon powder concrete to Baishan Hydropower Station;
补偿收缩硅粉混凝土在白山水电站的应用
Discussion on principle and requirement of choice of high-speed flow protecting surface material of silicon powder concrete;
由硅粉混凝土应用中存在的问题论高速水流护面材料选择的原则与要求
Application of silicon powder concrete for flood discharge middle outlet in the Baojixia Reservoir Project;
硅粉混凝土在宝鸡峡水库泄洪中孔的应用
The use of silica fume concrete can effectively improve the impermeability of concrete,frost resistance,Anti-abrasion and anti-corrosive.
北方水工混凝土普遍存在着混凝土冻融剥蚀问题,采用硅粉混凝土能有效提高混凝土的抗渗性、抗冻性、抗冲磨性和抗侵蚀性,无毒便于施工,成本较低,是大面积混凝土剥蚀破坏表面的首选修补材料。
Combining with concrete project example,the author studies the preparation of silica fume concrete and silica fume fly ash concrete based on experiment,and analyzes and compares their economy,gets the conclusion that the silica fume fly ash concrete has higher collapsed slump than silica fume concrete,and has better project economy and applicability.
结合具体的工程实例,通过试验对硅粉混凝土和硅粉粉煤灰混凝土的制备进行了研究,并对二者的经济性作了分析比较,得出硅粉粉煤灰混凝土较硅粉混凝土的坍落度高,且工程经济性与适用性强的结论。
The application of Silica fume concrete in hydraulic structure erosion treatment
硅粉混凝土在水工混凝土剥蚀处理工程中的应用
Application of High Performance Concrete (HPC) with Silica in Hydropower Engineering
高性能硅粉混凝土在水电工程中的应用
Discussion and Studies of the Silicon-concrete Used for Decorating the Bridge Floor of Sugang Expressway in Da Yao Gulf of Liaoning Province;
辽宁省大窑湾疏港高速公路桥面铺装硅粉混凝土探讨与研究
Influence of Silica Fume on Properties of Mining Slag Shorcrete
硅粉对矿用炉渣喷射混凝土性能影响
The Strengthen Action of Silicon Ash In Concrete Repairing Materials
硅微粉在混凝土修补料中的增强作用
Effects of Porous Silica Powder on the Performances of Self-compacting Fresh Concrete
多孔硅粉对新拌自密实混凝土性能的影响
Application of compounding fly ash and silica fume in self-compacting concrete
复掺粉煤灰和硅灰在自密实混凝土中的应用
Preparation of Abrasion Resistance Concrete with Silica Fume Slag Powder
复掺硅灰、矿渣微粉配制抗冲磨高性能混凝土
Single shell Lining Technology and Application of Injection with Steel Fiber Reinforced Siliceous Concrete
硅粉纤维喷射混凝土单层衬砌技术及应用
gas ash silicate concrete
加气灰渣硅酸盐混凝土
Consults on the properties of drying shrinkage and other problems for Portland fly-ash concrete wall products
粉煤灰硅酸盐混凝土墙材制品干燥收缩及有关问题的探讨
Discussion on characteristics of high strength fly ash concrete and concrete with ground slag
浅谈高强粉煤灰混凝土和矿粉混凝土的性能
portland pozzolan concrete
火山灰硅酸盐水泥混凝土
Applied technical specification for high-lime fly ash concrete
高钙粉煤灰混凝土应用技术规程
Technical code for design of flyash concrete for hydraulic structures
水工混凝土掺用粉煤灰技术规范
Fly ash used for cement and concrete
GB/T1596-1991用于水泥和混凝土中的粉煤灰
Technical specification for fly-ash concrete in port engineering
港口工程粉煤灰混凝土技术规程
Specification for acoustical design and application of steamcuring flyash concrete masonry
蒸养粉煤灰混凝土砌块生产应用规程