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低碱度硫铝酸盐水泥

放大字体  缩小字体 发布日期:2009-01-19  来源:中国混凝土网  作者:中国混凝土网
核心提示:低碱度硫铝酸盐水泥

一、主要品质指标: Main quality indexes

项目 Ltems

指标 Index

细度 Fineness

比表面积不低于 40 0 ㎡ / ㎏
Specific surface area is no less than 430 ㎡ / ㎏

凝结时间性
Coagulation time

初凝不早于 25min ,终凝不迟于 180min
Initial coagulation is no earlier than 25min, and final 180 min

碱度
Alkalinity

1h 的 PH 值小于 10.5
PH at 1h is less than 10.5

自由膨胀率
Free expansivity

28 天自由膨胀率小于 0.15%

Free expansivity si no lea than 0.15% in 28 days

强度
Strength

强度等级
Strength grade

抗压强度
Compressive strength

抗折强度
Rupture strength

 

1d

7d

1d

7d

42.5

32.0

42.5

4.0

5.5

注:凝结时间,用户要求时可以变动。(专门配备生产速凝剂、缓凝剂)执行标准: JC/T65 9 - 2003

Coagulation time, adjustable if required by clients

二、特性
  
有快硬水泥的早强特性,又有碱低,膨胀率低,稳定期短,干缩率小的优点。与玻璃纤维复合强度保留率高,使用寿命长,是 GRC 制品的专用产品。

Characteristic
  
It has early strength characteristics of fast hard cement and low alkalinity, low expansivity and short steady period as well as little dry shrinkage. And it has also high compound strength with fiberglass and it has a longer service life and is a special product for GRC product.

三、用途
  
用于生产轻质内外复合墙板,波瓦、网架板、通风道、欧式浮雕各种构件,建筑小品等 GRC 制品。

Usage
  
Used in production of GRC product such as light endosaro and outer compound wall plate, ripple tile, net frame plate, ventilation stack and various components of European basso-relievo and small buildings.

四、包装贮运
  
袋装水泥每袋净重 5 0 ㎏,随机抽取 20 袋,总质量不得少于 1000 ㎏,其他包装形式由供需双方商定。在运输和贮存时,不得受潮和混入杂物,不得与其他水泥混杂贮存。贮存期为三个月,过期应重新测试合格后再使用。

Packaging, storage and transport:
  
The cement is packed in bags with a net weight of 50 ㎏ each, random sampling of 20 bags, the total weight is no less than 1000 ㎏ , and other forms of packaging are to be decided by the supply and dem and parties. In transport and storage special attention should be pais to guard against dampness, agglomeration, and mixture of other types. The shelf life of the products is 3 months, of the time limit is exceeded, it should be rechecked to ensure that it is qualified before use.

五、注意事项
  
搅和好的物料一定要控制在 20min 内用完。拌和料失去流动性后,不得第二次加水拌合再使用。水泥制成品应在 2h 内即洒水养护,养护期不少于三天。冬季施工时,要注意防寒措施,必要时加适量亚硝酸纳,要进行蓄热养护。

Cautions
  
Mixed cements must be used up in 1.5h. After loss of fluidity of the mixed cements, it is not permitted to add water for the second time to use. As to the finished cement products. sp-rinkling to maintain after 2h, and the maintenance period is no less than 3 days. When constructing in winter, measures to guard against cold should be taken and add proper nitrite if necessary and it is necessary to store warmth to maintain

 
 
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