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水硬性胶凝材料高铝水泥快硬耐腐蚀高铝水泥

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水硬性胶凝材料高铝水泥快硬耐腐蚀高铝水泥示例图1

水硬性胶凝材料高铝水泥快硬耐腐蚀高铝水泥示例图2

凡以铝酸钙为主，氧化铝含量约50的熟料，磨制的水硬性胶凝材料，称为高铝水泥，属于铝酸盐类水泥。高铝水泥也是快干水泥，现在自流平水泥中可以用的快干水泥很多的，高铝、硫铝、铁铝、双快等，很多。高铝水泥和硅酸盐水泥都是属于水硬性水泥，前者的主要矿物组成是铝酸盐，后者的主要矿物组成是硅酸钙，由于矿物组成的不同，水泥的特性也不相同。

高铝水泥具有早期强度增进率较高、水化热较大、抗硫酸盐侵蚀性能强和耐高温性好等多种特性。

细度：0.08mm方孔筛筛余不得超过10。

凝结时间：初凝不得早于40min，终凝不得迟于10h。

化学成分：SiO210，Fe2O33

All the materials that are made of calcium aluminate, about 50 of alumina, are made of hard and hard cement, which is called high alumina cement, which belongs to aluminate cement. High alumina cement is also fast dry cement, and now it can be used in self-leveling cement, which is a lot of fast dry cement, high aluminum, aluminium, aluminum, double fast, etc., a lot. High alumina cement and Portland cement are belong to the hydraulic cement, the former is the main mineral composition of aluminate, the latter is the main mineral composition of calcium silicate, because of the different mineral composition, the properties of the cement is not the same.

High alumina cement has many characteristics such as high early strength, high water heat, high resistance to sulfate and high temperature resistance.

Fineness: 0.08 mm square hole sieve no more than 10.

Coagulation time: the initial coagulation should not be earlier than 40min, the coagulation must not be later than 10h.

Chemical composition: SiO2 is less than 10, Fe2O3 is less than 3

水硬性胶凝材料高铝水泥快硬耐腐蚀高铝水泥示例图3

1、快硬早强：铝酸盐水泥凝结硬化快，一天可达到标号强度的80以上，三天可达到标号强度的100。

2、抗冻性、耐腐蚀性强：铝酸盐水泥水化热集中释放，抗冻、耐腐蚀性能比普通水泥及其它水泥好，抗硫酸盐和矿物水的侵蚀性能强。

3、防水性能好：铝酸盐水泥混凝土因其密实，故不透水，防水性能强。

4、耐热性能好：铝酸盐水泥没有Ca(OH)2和因温度变化而引起体积变化效应的硅酸二钙，所以是一种性能良好的耐热水泥。所配制的混凝土耐火度可达1300-1400。

Hard and early strength: aluminate cement solidifies and solidifies fast, can reach more than 80 of the strength of the label one day, and can reach 100 of the mark strength in three days.

2, frost resistance, corrosion resistance is strong, aluminate cement hydration heat release, frost resistance, corrosion resistance is better than ordinary cement and other cement, sulfate and mineral water erosion resistance is strong.

The waterproof performance is good: aluminum acid salt cement concrete because of its dense, so the waterproof performance is strong.

4, heat resistant performance is good, aluminate cement without Ca (OH) 2 and volume change caused by the temperature change and effect of dicalcium silicate, so it is a kind of good performance of cement. The preparation of concrete refractoriness of up to 1300-1400 .

水硬性胶凝材料高铝水泥快硬耐腐蚀高铝水泥示例图4

1、高铝水泥具有早期强度增长率较高的特性，可以制作快硬混凝土与快硬砂浆，应用于抢建、抢修、抗硫酸盐蚀和冬季施工等特殊需要的工程。

2、制作耐热混凝土与耐热砂浆：高铝水泥是适用于一般耐热工程的胶凝材料。因其强度高在制作耐热混凝土时，可多用耐火材料，故砂浆或混凝土的耐热性能好；广泛用于冶金、化工、石油、机械、建材等工业的各种窑料。

3、低温施工：高铝水泥水化快，放热集中，低温下比硅酸盐类水泥快的多。5以上施工可免去蒸气养护与防寒措施，加快工程进度。

4、用于抗硫酸盐浸蚀的工程：高铝水泥抗硫酸盐浸蚀性能好，适用于海港工程、盐湖地区的铁路建设和建筑工程以及弱酸性压水管道等。

5、生产其它品种水泥；以高铝水泥为原料，可生产各种膨胀、收缩补偿以及特种耐热、耐蚀水泥。如：铝酸盐自应力水泥、硅酸盐自应力水泥、石膏岩土膨胀水泥、不透水不收缩水泥、耐热油井水泥、抗铵聚合水泥、特快硬水泥等。

6、其它用途：高铝水泥(铝酸钙粉)是生产净水剂的主要原料其铝含量在53以上，也是生产无机花岗岩(人造大理石)的主要原料，还可以用于制造化学工业触媒、防冻混凝土、防中子混凝土、铸造模型、火花塞、电气开关减弧罩等。高铝水泥不适于长期承重的结构工程－晶体转变引起的强度倒缩；大体积工程－温度过高引起强度倒缩；与硅酸盐水泥混用。

1, the characteristics of high alumina cement with early strength growth rate is higher, can make rapid hardening and rapid hardening cement mortar, concrete application in the scrambling, repair, resistance to sulphate corrosion and winter construction engineering and other special needs.

Make heat-resistant concrete and heat resistant mortar: high alumina cement is the glue that is suitable for general heat resistance project. Because of its high strength in the production of heat resistant concrete, it can be used for refractory materials, so the heat resistance of mortar or concrete is good. It is widely used in metallurgical, chemical, petroleum, machinery, building materials and other industries.

Low temperature construction: high alumina cement water fast, heat concentration, low temperature lower than silicate cement. More than 5 construction and protection measures in steam curing and can be avoided, speed up the construction schedule.

4, used for resistance to sulfate erosion project: high aluminum cement sulfate erosion resistance performance is good, for sea port engineering, salt lake region of railway construction and construction engineering, and weak acid pressure water pipes, etc.

Production of other types of cement; It can produce various kinds of expansion, shrinkage compensation and special heat-resistant and corrosion-resistant cement. Such as: aluminate self-stressing cement, silicate, self-stressing cement, gypsum rock expansive cement, concrete impervious contractive, heat oil well cement, ammonium polymer cement, express cement, etc.

6, other purposes: high alumina cement (calcium aluminate powder) is the main material in the manufacture of the water purifier the aluminum content over 53, is the main material in the manufacture of the inorganic granite (artificial marble), can also be used in the manufacture of chemical industry catalyst, antifreeze, neutron radiation proof concrete, concrete casting model, spark plugs, electrical switch arc hood reduction etc. High alumina cement is not suitable for the structural engineering of long-term bearing; the intensity of the transformation of the crystal is reduced. Large volume engineering - overheat causes the intensity to fall; Mixing with silicate cement.

水硬性胶凝材料高铝水泥快硬耐腐蚀高铝水泥示例图5