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高鋁水泥介紹
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? ? ??高鋁水泥是以鋁礬土和石灰為原料，按一定比例配制，經煅燒、磨細所制得的一種以鋁酸鹽為主要礦物成分的水硬性膠凝材料，又稱鋁酸鹽水泥。
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高鋁水泥性能特點
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? ? ??根據高鋁水泥的水化可總結出高鋁水泥具有以下特性：
? ? ? ?1、高鋁水泥的早強特性：其早期強度增進率遠**過快硬硅酸鹽水泥，適用于緊急其搶修工程，但后期強度會降低，在結構工程中限制使用。
? ? ? ?2、水化熱較大：早期水泥硬化放熱大，與同標號的硅酸鹽水泥相比，僅**就可放出水花熱總量的70-80。由于幾種放熱，適用于低溫養護的混凝土工程。
? ? ? ?3、抗硫酸鹽侵蝕性能強：水化過程不析出游離氫氧化鈣而是生成氫氧化鋁凝膠，在顆粒表面形成保護膜。在后期晶體轉化過程中抗侵蝕性有所降低。
? ? ? ?4、耐高溫性好：高鋁水泥可作為耐熱混凝土的膠結材料，配置成耐熱混凝土。
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高鋁水泥技術指標
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<特性指標
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單位
量值
****
GB201-2000中CA50規定
比表面積
SSB
?O/kg
369
300
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化學成分
SiO2
7.41
8.0
AL2O3
51.10
50
Fe2O3
2.19
2.5
R2O
0.32
0.4
凝結時間
初凝IS
分鐘
166
30
終凝FS
分鐘
223
360
抗折強度
**
Mpa
7.2
5.5
三天
Mpa
7.7
6.5
抗壓強度
**
Mpa
51.9
40
三天
Mpa
60.6
50
高鋁水泥應用
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? ? ??高鋁水泥又稱為鋁酸鹽水泥 耐火水泥，相當于625#水泥，因其具有優良的快凝，高強，耐高溫之特點，**強度可達80，耐火度可達1450度，耐火混凝土強度可達55MPa,是工業窯爐工程中**的高溫結合劑材料之一。
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偃師市盈昌耐火材料有限公司
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廠 ? 址：偃師市城關鎮興隆街
劉曉穎
手 ? 機：
Q ? ?Q：334****076
郵 ? 箱：334****076@qq.com
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產品
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廠區
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英文翻譯
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Introduction of high alumina cement
High alumina cement is with bauxite and limestone as raw material, according to a certain proportion of preparation, calcination, grinding of the A in aluminate as the main mineral components of hydraulic cementitious material, also known as aluminate cement.
Performance characteristics of high alumina cement:
According to the hydration of high alumina cement, high alumina cement has the following characteristics
1, high alumina cement early strength characteristics: its early strength is far more than the rate of rapid hardening portland cement, suitable for emergency repair works, but the late strength will be reduced, in the structural engineering to limit the use of.
2, hydration heat is greater: early hardened cement large heat release, compared with the same grade of Portland cement, only a day can be 80 of the total spray heat release. Because of some heat release, the concrete project which is suitable for low temperature curing.
3, strong resistance to sulfate attack: the hydration process does not precipitate free calcium hydroxide generated instead of aluminum hydroxide gel, on the surface of the particles formed protective film. In the latter part of the crystal transformation process, the erosion resistance is decreased.
4, good high temperature resistance: high alumina cement can be used as the cement concrete of the cementing material, is configured to heat resistant concrete.
Application of high alumina cement:
High alumina cement and sulphoaluminate cement refractory cement, equivalent to the cement 625 Because of its excellent fast setting, high strength, resistance to high temperature characteristics of that day intensity can reach 80 and refractoriness up to 1450 degrees, refractory concrete strength up to 55MPa, is one of the industrial furnace engineering excellent high temperature binder material.
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偃師市盈昌耐火材料有限公司
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廠 ? 址：偃師市城關鎮興隆街
劉曉穎
手 ? 機：
Q ? ?Q：334****076
郵 ? 箱：334****076@qq.com
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