Shenzhen Chenggong Trade Co.,Ltd.
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Home About Us Rapid-setting Accelerator
for white portland cement
Rapid-setting Accelerator for
portland cement & light foaming cement
CSA Binder Products Technical Support
 
 
  

Products
Rapid-setting Accelerator for white portland cement
Rapid-setting Accelerator for portland cement
CSA Binder
Special Cements
Additives for cement and concrete
Additives for gypsum
Alkali-resistant Glassfibre
Acid-resistant Bricks and Binder
Refractory Castables

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Products

Details
喷射混凝土专用速凝剂
(PCS-I 硅酸盐水泥专用速凝剂)
 
概述
硅酸盐水泥专用速凝剂(PCS-I型),也被称作喷射混凝土专用速凝剂,是能促使硅酸盐系列水泥及其混凝土快速凝结的专用外加剂。
PCS-I型速凝剂,为灰白色固体粉状材料。
适用的水泥品种:硅酸盐水泥、普通硅酸盐水泥、抗硫酸盐水泥等硅酸盐系列水泥品种。
 
品质指标
符合JC477-2005质量标准
1、匀质性指标
试验项目
标准指标值
实际产品指标值
氯离子含量
应小于生产厂最大控制值
约0
总碱量
应小于生产厂最大控制值
约0
细度(80µm筛余)
小于15%
约7-10%
含水量
≤2.0%
≤2.0%
2、掺速凝剂的净浆和硬化砂浆性能指标
试验项目
标准指标值
实际产品
指标值
一等品
合格品
净浆
初凝时间
min:s, ≤
3:00
5:00
3:00
终凝时间
min:s, ≤
8:00
12:00
8:00
砂浆
1d抗压强度
Mpa, ≥
7.0
6.0
约10.0
28d抗压强度比
%,  ≥
75
70
100
 
用途
主要用于使用普通硅酸盐水泥在铁路或公路隧道、冶金、矿山的井巷、以及水电、军工、人防等地下工程的喷射砼或喷射砂浆。
 
应用及注意事项
1、  掺量:建议掺量为水泥用量的3-5%;在使用前,必须针对工程所用施工水泥,作适应性试
验,以确定最佳掺量。调整掺量和/或水灰比,可调节凝结时间。
2、含泥量、含水量:当被用于喷射混凝土时,施工前,必须做砂、石的含泥量、含水量的测定,含泥量应控制在2%以下,含水量应控制在3%以下,否则,会影响喷射混凝土的效果和强度。
3、水灰比:施工中应严格控制水灰比,否则会延长凝结时间,导致回弹量增多,粉尘过大,影响喷锚效果。
4、喷射前,应先将砂、石、水泥按比例配合混合料,搅拌均匀,待喷射时,将本剂拌入混合料内调节水灰比和风压,立即喷射。
5、喷射后的混凝土,用喷水养护两周。
6、受潮、结块的水泥和水泥速凝剂,均不得使用。
7、注意防水、防潮。一次不能使用完,应立即将塑料袋口扎紧,严防受潮变质;
 
运输、贮存
1、装运:按照非危险货物运输规则装卸、运输;
2、贮存:通风干燥的环境下,整件存放、妥善保管,注意防水、防潮。
 
包装
塑料编织袋内衬PP袋,25kg/袋,和/或吨袋
 

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Description of Products

Type WCS Rapid-setting Accelerator for White Portland Cement Type WCS Rapid-setting Accelerator, including type WCS-1 and WCS-2, is a kind of professional admixture special for white portland cement. It is also named Early-strength Admixture, Fast-hardening Admixture or Rapid-setting Additive for white cement. Just like grey portland cement, white portland cement (also simply named white cement) always has slower setting and lower early strength. Type WCS Rapid-setting Accelerators can cause white cement mortar, cement products or concrete products, paint of white cement, etc., rapid setting, fast hardening and high early strength. So it can help white cement products to get the effect of shorter setting time and rapider demould. And after using type WCS Rapid-setting Accelerator, the late strength of white cement products will not fall and even can get improvements in a way. And it is environmental friendly to surroundings, free of poisonous heavy metal contents such as chromium(Cr), plumbum(Pb), hydrargyrum(Hg), and chlorine salt composition(Cl) etc.
Type PCS Rapid-setting Accelerator for Portland cement and Foaming cement and Concrete Type PCS Rapid-setting Accelerator, including type PCS-2 and PCS-3, is a kind of professional admixture special for grey Portland Cement. It is also named Early-strength Admixture, Fast-hardening Admixture or Rapid-setting Additive for grey portland cement. Grey Portland cement always has slower setting and lower early strength. Most of producers of cement and concrete products are puzzled by these questions all along. Type PCS Rapid-setting Accelerators can cause grey portland cement mortar, cement and concrete products, light weight cement cement or concrete boards, foaming cement boards and foaming concrete products rapid setting, fast hardening, high early strength. So it can help grey portland cement products and light foaming cement and concrete products to get shorter setting time and rapider demould effect. Moreover, after using type PCS Rapid-setting Accelerator, the late strength of cement products will not fall and even can get improvements in a way. And it is environmental friendly to surroundings, free of poisonous heavy metal contents such as chromium(Cr), plumbum(Pb), hydrargyrum(Hg), and chlorine salt composition(Cl) etc. Because of these fine characters, our type PCS Rapid-setting Accelerators are better than the similar rapid-setting additives in the market.
CSA Binder is a kind of special building materials. One of its basic performances is that it has high early strength. It is the main composition of rapid-setting cement, expansion cement, self-stressing cement. It is also used as accelerating admixture, rapid setting admixture and expansion admixture of port- land cement when construction. Our CSA Binder includes many types or grades.
Because of special performances and application, these cements are generally named special cements. They include Sulfate Resistance Portland Cement(SRC), High-strength Rapid-setting Calcium Sulfoaluminate Cement(CSA Cement), Calcium Aluminate Cement( also named High Alumina Cement or Refractory Cement), White Portland cement(also named White Cement), Low-Heat Portland Cement (also named Belate Cement), High-strength Fast-hardening Plugging Cement, etc. Just because of particularities of their performances and uses, they are always used in making many special products, project or construction, etc.
Main items include type PCS-2 & 3 Rapid-setting Accelerator for Portland cement, type SAC-1 Rapid-setting Accelerator for calcium culfoaluminate cement and high alumina cement, type WCS-1 & 2 Rapid-setting Accelerator for white portland cement, Rapid-setting Accelerator for foaming cement boards and concrete products, Retarder for cement and concrete, Water-reducing Reinforcing Admixture, Expansion Additive, etc. These additives can effectively improve the performances of cement and concrete, and help to get the idea products on the different working and production conditions. They all do not have chlorine salt composition (Cl). It will not appearance to damage the cement or concrete products because of using these additive. For example, most of Rapid-setting Accelerator can cause the cement or concrete quick setting but it also will cause the late strength of cement or concrete products fall, but our Rapid-setting Accelerator will not make these problems.
Our product items include Water-reducing Reinforcing Admixture and Retarder for gypsum. Type WRA-I Water-reducing Reinforcing Admixture is a kind of pure white powder, and it can cause several gypsums and gypsum products good fluidity and improve strength. Retarder can make gypsum products effectively delaying setting but its strength is almost not fallen.
Alkali-resistant Glassfibre is a major materials used in Glassfibre Refinforced Concrete (GRC), made of 100% inorganic material. It is an ideal sunstitute for steel and asbestos in non-structural pre-cast concrete elements. It has good alkali-resistance performance, which enables it to resist the corrosion of high-alkali substance in cement. The characteristics of GRC include high bond strength, high elastic modulus, high impact, tensile and bending strength, fire and freezing resistant, crack resistant and excellent impermeability. It is easily formed and malleable to any designs. Overall, it is a high performance and environmentally friendly materials that can be widely used in building. Out product items include Chopped Strand, Spray Roving, Water Dispersed Chopped Strand, Scrim and Mat, etc.
This item includes two acid-resistancing products, Acid Resistance Bricks and Acid Resistance Binder. As special building products, Acid Resistance Bricks are widely used in acid resistance construction and projects such as corrosion-resisting liner of Petroleum, Chemical industry, Chemical Fertilizer, Food, chemical fiber, laboratory, pharmacy, making-paper, generate electricity, smelt, electroplating room, and the inner corrosion-resisting lining of tower, pool, pot, tank, ground surface of working-room, pickling tub of electroplating factory, etc. Brick is also used for sewage conduit and open-air floor. Acid Resistance Binder is mainly used in acid proof projects for affixing Acid Proof Bricks/Tiles and as joint sealing materials of Acid Proof Bricks, also for making acid proof concrete, etc. It also can resistance high temperature.
Castable Refractories belongs to non-shape refractory materials. It includes many kinds of dense castable refractories made of fireclay and high alumina raw materials. These castable refractories are mainly used in the inner linings of pyroprocessing plants for example industry furnaces. As high alumina castable refractories, they are often used in high temperature projects, for example incinerator, heat kiln in the rolling mill, kiln in glass industry, etc. It includes Clay Bonded Refractory Castables, Cement Bonded Refractory Castables, Low Cement Bonded Refractory Castables and Phosphate-bonded Refractory Castables.

Shenzhen Chenggong Building Materials Co., Ltd. was build on 2001, the professional supplier and researcher of special building materials including additives for several cements, additives for gypsum, special cements, alkali-resistant glassfibres, acid resistant bricks and castable refractoriess.

More than ten years, Shenzhen Chenggong Building Materials Co., Ltd. has long been involved in researching and supplying high quality special building materials products and service to different customers from many countries in the world. So far hundreds of customers from different countries in worldwide have accepted the quality products and service supplied by Shenzhen Chenggong Building Materials Co., Ltd.

In the products lines, except normal special cements for example high-strength rapid-setting calcium sulfoaluminate cement, high alumina refractory cement, sulfate resistance Portland cement, white cement, oil well cement, etc., Shenzhen Chenggong Building Materials Co., Ltd. has more advantage in supplying diverse additives for cement , concrete and gypsum. Especially, type WCS Rapid-setting Accelerator for white cement products, type PCS Rapid-setting Accelerator for portland cement and light foaming cement products, have gotten better production effect in the market. Both are researched and produced by Shenzhen Chenggong Building Materials Co., Ltd.

Shenzhen Chenggong Building Materials Co., Ltd. is a business party with responsibility and love. In Wen-chuan big earthquake of China and The Tsunamis in the south and south-east Asia, it donated funds and lots of cloths.

Shenzhen Chenggong Building Materials Co., Ltd. will be supplying quality and stable products and heartful service to the old and new customers as always.
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