矿渣混凝土

The results showed that the difference of the particle appearance between the products of ball mill and vertical roller mill was not significant.

矿渣微粉不仅可作高性能混凝土的矿物掺合料，也有部分水泥厂采用矿渣和熟料分别粉磨的方式生产普通水泥和矿渣水泥。

Fly ash and slag can increase the resistance of concrete to chlorid e ion penetration,and silica fume,metakaolin,rice husk ash and some content s lag can increase significantly the resistance of concrete to chloride ion penetr ation.

粉煤灰和矿渣能提高混凝土的抗氯离子渗透扩散能力，硅粉、偏高岭土、稻壳灰和适当掺量的矿渣能大幅度提高混凝土的抗氯离子渗透扩散能力。

Watering concrete curing time, the introduction of Portland cement, ordinary portland cement or slag cement concrete mixing shall not be less than 7d; retardation of mixed type with admixtures, the impermeability requirements, or ash cement, fly ash cement concrete mixing shall be not less than 14d; of mixing using alumina cement concrete not less than 3d.

混凝土的浇水养护时间，对采用硅酸盐水泥、普通硅酸盐水泥或矿渣硅酸盐水泥拌制的混凝土不得少于7d；对掺用缓凝型外加剂、有抗渗性要求、或用火山灰水泥、粉煤灰水泥拌制的混凝土不得少于14d；对采用矾土水泥拌制的混凝土不少于3d。

ABSTRACT Chemical corrosion mechanism of concrete in Qinghai salt lake is briefly reviewed, and bittern resisting behavior of high alumina cement concrete, magnesium oxychloride cement concrete, alkali-activated slag concrete, ferrialuminate cement concrete and polymer impregnated concrete are also reported in the paper.

摘 要 简述了普通水泥混凝土在盐湖环境中的受腐蚀机理﹔报道了高铝水泥、氯氧镁水泥、铁铝酸盐水泥、碱矿渣和聚合物浸渍混凝土的抗盐卤腐蚀行为﹔对硅灰高密实混凝土的抗盐卤腐蚀机理进行了详细讨论，认为改善孔结构是获取混凝土高抗腐蚀性的有效途径。

The SCC has the following advantages: remarkably reducing the noisy pollution and the worker s labor intensity in construction, deducing the rough surface or segregation because of missing-vibration or excessive-vibration in conventional construction, resolving the quality-defect problems resulting from lacking-vibration in the section of complex shapes and densely-packed reinforcement area. At the same time, large of industrial solid waste such as fly ash and blast furnace slag is utilized in the proportioning of SCC. It is helpful in comprehensive utilization of resource and environment protection, so the SCC belongs to "green concrete", it is a branch of HPC which will be developed in the future.

这种混凝土可以显著降低混凝土施工中的噪音污染；大幅度减轻工人的劳动强度；减少传统混凝土施工中因漏振或过振造成的麻面或离析；解决了配筋密集、结构复杂部位因振捣不足而造成的质量缺陷问题；同时，由于自密实混凝土在配制中，大量利用粉煤灰、高炉矿渣等工业固体废弃物，有利于资源的综合利用和生态环境的保护；从而被誉为&绿色混凝土&，是未来混凝土向高性能发展的方向之一。

Slag concrete can be equivalent to replace 20%~ 70% of cement, the fly ash, slag powder when the double-doped slag still be equivalent to replace 30% to 40% cement.

混凝土中矿渣粉可等量替代20%～70%水泥，在粉煤灰、矿渣粉双掺时矿渣粉依然可等量替代30%～40%水泥。

Avoiding the shortage of bleeding and viscosity,and improving pumpability can be actualized by using double-mixture with ground slag and fly ash.

本文介绍了磨细矿渣在商品混凝土中的试验和应用情况，采用磨细矿渣、粉煤灰双掺技术可克服混凝土泌水和粘稠性缺点，提高可泵性。

Based on the local sources, a new kind of aerated concrete containing efflorescence sand phosphorus slag lime was studied in order to develop the new type wall materials for the Three Gorges Migration Project. The result indicated that by taking the efflorescence sand as the main silicate material and phosphorus slag as a part of substitute materials of calcium, qualified aerated concrete under the low dosage of cement could be produced.

为解决三峡库区移民工程新型墙体材料问题，针对当地资源分布，对风化花岗岩砂磷矿渣石灰加气混凝土的生产工艺参数和微观结构进行了研究，结果表明：采用风化花岗岩砂作为主要硅质材料，磷矿渣作为部分钙质代替材料，可以在低水泥用量下生产出满足国家标准的加气混凝土制品；该体系的主要水化产物是CSH、托勃莫来石、水石榴子石。

Using metallurgical slag Pangang development to produce 10 series over 20 kinds of slag building materials products, main products have slag gravel, slag sand,·, silicate block, gutter cover, color pavement bricks, ordinary silicon Salts cement, composite powders, brightener, high titanium proppant fracturing oil and commodity concrete.

公司利用攀钢冶金废渣开发生产出10大系列20多种矿渣建材产品，主要产品有矿渣碎石、矿渣砂、路沿石、硅酸盐砌块、水沟盖板、彩色路面砖、普通硅酸盐水泥、复合微粉、光亮剂、高钛石油压裂支撑剂和商品混凝土等。

The experimental results show as follows: Slag could inhibit the cracking of concrete within the range of certain proportion. With the increase of slag proportion the selfshrinking of concrete increases, but the drying shrinkage of concrete decreases.

结果表明矿渣掺量在一定范围内时可抑制混凝土的开裂，混凝土的自收缩随矿渣掺量的增大而增大，干缩随矿渣掺量的增大而减小。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐