Concrete High-range
Water-reducer SM (Sulfonated Melamine-formaldehyde Resin) is a polymer
electrolyte, SM is the best one of existing concrete admixture in
comprehensive properties.
It is able to prepare high-strength concrete and flowing concrete
by adding SM into Ordinary Portland Cement. For high-strength concrete
the compressive strength will reach or surpass 80MPa.This concrete
is largely used in high-raise building and many important prestressed
concrete structure of civil engineering. The flowing concrete is
usually used for in-site casting and pump concreting,such as mass
foundation and other structure with closs arranging reinforcement
.
It has a excellent compatibility for Aluminous Cement. It metallurgical
industry SM is often used as major admixture for refractory concrete,
included castables and field mixes.
The product of SM is of a white or transparent colourless water
solution. Owing to this it can be extensively used in inorganic
decorative materials such as man-made marble,terrazzo,paints and
various gypsum products .
Characteristics
Principle Technical properties
1.For dosage within 0.5~1.0% by weight of cement,the water reduction
rate will be 20~25%2. When dosage is appropriate , It is able to
increase the compressive strength of concrete and mortar by 40~100%
at one day,by 30~60% at 28 days . The later age strength also in
crease (about 20%) .
3. It is able to prepare high strength concrete (60~80MPa,even higher)
by using 45.5#~55.5# Ordinary Portland Cement .
4.Adding SM to refractory concrete,from Aluminous Cement,the strength
after drying at 110℃ and after burning at high temperature will
increases obviously(by 60~170% for compressive).
5. Because of no air-entrainment SM can be used curing of concrete
and their products.
6. The SM is usually applied for α-hemi hydrate gypsum and β-hemi
hydrate gypsum,When dosage is 0.5~1.0% by weight of gypsum,It is
able to increase the strength of gypsum by high water-reducing rate.
SM 高效减水剂
一、概况
SM 高效减水剂是一种水溶性阴离子型高聚合物电介质,对水泥具有极强的吸附和分散作用。它是现有混凝土减水剂中综合指标较好的减水剂之一。 SM 高效减水剂的特点是:白色、减水率高、非引气型、氯离子含量低对钢筋无锈蚀、对各种水泥的适应性好。使用 SM 高效减水剂,混凝土早期强度和抗渗性明显增高,施工性、保水性更好。蒸汽养护适应好。 因此不仅适用于泵送混凝土、预制混凝土、管椿混凝土,特别适用于清水混凝土、装饰混凝土、自流平混凝土等。除在混凝土中使用外,也可在石膏中作为减水剂使用,提高石膏制品的强度。
二、技术数据
外观:粉剂为色粉末。液体为无色透明液体
含水量 (%) ( 粉剂 ) :小于 3 。
固体含量 (%) ( 液体 ) : 20 ± 1 、 40 ± 1
PH 值 ( 20 ℃ ) , 20% 溶液: 8 ~ 9 。
硫酸根离子含量 (%) : 3~4
氯离子含量 (%) : 0.03~0.04
表面张力 (mN / m) : 71.5~72.0
建议掺加量: 0.3 至 1.0% ( 水泥用量 ) 。
三、规格
本产品分为:
粉末、 40% 液体。
四、适用范围
可用于高强混凝土、高流动性混凝土、高耐久性混凝土、铝酸盐水泥耐火混凝土或低水泥耐火浇注科、蒸养混凝土、高强砂浆、石膏制品、自流平地坪、填缝料、灌浆材料等。也可作为光亮剂生产彩色地砖和盾构管片。液体可以用作复配其他外加剂的母液。
五、包装
粉末:塑料密封袋装,每袋 20 公斤 。液体:桶装,每桶 250 公斤 。
六、储存
粉末易吸潮,应在密封的原装袋中存放,并置于干燥的地方。储存期:一年。
七、运输规定
不燃,无毒,一般运输要求。
SM High-Range water Reducer
一、 Description
System High efficient water reducer is a negative ion type high polymer dielectric material which can be dissolved in water. It has very strong adsorption and dispersion effects to the cement. It is one of the good water reducers which have the better comprehensive property indexes. Its characteristics are: white, high water reducing effect, non-air-entrained, low C1 ion content (thus the steel bars in the concrete cannot be rusted), suitable for various cements. When this product is applied, the early strength and the anti-water-permeation of the concrete are increased obviously, and the construction property and the water-keeping ability of the concrete will be better. Therefore, it is not only suitable to be used in the pump concrete, the prefabricated concrete, the tube pile concrete , but also it is specially suitable to be used in the faiv-face comcrete concrete, the decoration concrete , the self-flowing concrete, and son on . Besides the uses in the concrete. It also can be used in the gypsum as the water reducer to enhance the strength of the gypsum.
二、 Properteis
Outward appearance : White powder or colorless
Transparent liquid
Water content(powder)(%) :< 3
Solid substance(liquid) (%) : 20+/-1
PH value (20degree C., 20% solution) : 8~9
SO 4 ion content (%) : 3~4
C1 ion content (%) : 0.03~0.04
Surface tension (mn/m) : 71.5~72.0
Suggested mixing amount : 0.3 1.0% (of the cement amount).
三、 Specification
This product is divided into:
SM (P) (Powder), SM (L) (Solution) 40%.
四、 Suitable application range
This product can be applied in the high strength concrete, the high fluidity concrete, the high duration concrete, the aluminate cement refractory concrete or the low cement refractory concrete, the grouting materials, the steam curing concrete, the high strength mortar , the gypsum products, The self-flowing ground, the stuffing materials, the grouting materials, and so on . It also can be used as the brightened agent for manufacturing the coloured ground brick and the tunnel liner. The liquid product can be used as the mother liquor to compound the other additional agent.
五、 Package
Powder: plastic sealed bag . 20kg per bag , solution : in bulk 250kg drum.
六、 Storage
This powder is easy to absorb the moisture from the air. So it must be kept in the original sealed bag and stored at the dry place. The storage period is one year.
七、 Transportation
This product is non-toxin and non-flammable. So the transportation requirement is general.