All type of Concrete Admixture. Official Head of Bangladesh, MARKCHEM Construction, Bangladesh Division located at Dhaka. Brand: MARKCHEM, India. Other products like BASF Bangladesh, FlowCrete Malaysia, Gerflor French, Fosroc, Sika, Pidilite etc.
PCE is a polycarboxylate based high range water-reducing admixture which enables concrete to be produced with very low water to cement ratios. Polycarboxylate superplasticizer is compatible with air-entraining agents, microsilica, accelerators and many other admixtures; however,each material should be added to the concrete separately.
Naphthalene Sulfonate Formaldehyde Condensate (SNF), also known as Poly Naphthalene Sulfonate (PNS) and Formaldehyde Sulfonate Condensate (FDN), is a highly effective water reducer and superplasticizer commonly used in the construction industry to improve the workability and strength of concrete.
Corrostop-15 which is a 3 in 1 Corrosion inhibiting concrete admixture tested & approved by IIT, Madras ,iNDIA with the below advantages. Advantages: 1)Works as Anti Corrosion for the TMT rods in Concrete & hence increases the building life 2)When Corrostop-15 is used, it reduces the water: cement ratio & completely seals the invisible pores in the concrete & hence acts as an excellent water proofing agent. Hence do not require separate water proofing chemical. 3)CORROSTOP-15 arrests the airline cracks in RCC roofing 4) Corrostop-15 can also be used as Wall plastering admixture with M-Sand which leaves the walls stronger with no air cracks. 5) Compatible with all grades of concrete.
We design and make various industry defoamers, have good defoamers for concrete admixtures, water reducer.
Description YL-15 is naphthalene-based non-corrosive, non-chlorine compound antifreeze admixture which compounded with water-reducing, early-strength, reducing the freezing point, preventing freezing damage etc. ingredients, powder, it has early-strength, water-reducing, air-entraining, anticorrosion etc. functions. It is mixed to the concrete according to the request, can obviously improve the configuration of the capillary pores and reduce free-water and the freezing point of the concrete effectively. And it can accelerate cement hydration and concrete hardening under the low temperature condition, enhance the early strength greatly and make the strong more and more by time, is ideal admixture for construction in winter. Uses YL-15 is suitable for the winter construction (in ambient temperatures ranging from -5 degree to -20 degree) of common concrete, pumping concrete, large volume concrete and ready mixed concrete. Advantage YL-15 is a new generation of high efficient anti-freezing admixture. Small dosage, completely water soluble, low alkali, apparent reducing effect on the alkali-aggregate reaction. It can improve the workability, pumping properties and early strength of the concrete. YL-15 is suitable for concrete and precast below C50 but also the concrete above C50 with a addition of our high range water reducing admixture. Specifications Item Norm Item Norm Appearance Lark powder Fluidity of cement 120-160mm Moisture ¹10% Chlorine content Non PH value 7-9 Alkali content % 2.2 Technical Data Sheet Item JK-15 C10 JK-15 C15 JK-15 C20 Dosage 2.0% 3.0% 4.0% Lowest Daily Temperature -5degree -10 degree -15 degree Setting Time Difference (min) Initial -+120 Final Compressive Strength (Mpa) 1 day 8 2 1 3 days 25 20 10 7 days 40 30 15 28 days 60 50 40 Shrinkage (%) 28 days 20 Steel-bar Corrosion None Cautious 1.After the pouring construction covers the surface using the plastic sheeting and the grass curtain, do not let it to freeze immediately or blow the winds excessively caused the crack. Entering the mold temperature control above 5 degree. 2.Required heating curing at the early strength fast-enhancement. After the concrete formed, if the surface iced up, this phenomenon does not cause any the freezing damage. The intensity will remain enhancing rapidly, when the ambient temperature increasing. Package, Storage & Shelf Life For powder: Woven plastic bag with film liner. Net weight: 25kg +/- 0.2 kg. It should be stored in a dedicated warehouse that is well-ventilated and dry and keep away from moisture. Shelf Life: Minimum 12 months. After the expiration date, it can be used if testing results is qualified. For powder: Woven plastic bag with film liner. Net weight: 25kg +/- 0.2 kg.
Polycarboxylate Superplasticzier we produce types as below: High water reducing standard type (normally they can be satisfied and used alone for concretes' requirements) JH03 basic standard type under most exported JH09 viscosity adjustment type, water reducing ratio is higher than JH03 suitable for high clay content ratio of cement,under most exported JH15 high technology Carbox-6 type,water reducing ratio and performance are better than JH03 and JH09 suitable for high strength concrete, New Research Slow Release High Slump retention type (if concretes' slump retention is not satisfied) JH02 High slump retention type under most exported less than JH06 JH06 high slump retention type, mixing with JH03 and JH09 if concrete's slump retention is not satisfied under most exported 1.Every type of PCE has 40% 50% solid content. 2.When mix water reducing type PCE with slump retention type,the suggested mixing ratio is 8:2 or 7:3 or 6:4 by weight according to lab trial test. 3.Mainly export JH06 and JH09.
PCE superplasticizer is the newest generation superplasticizer used for concrete in domestic and abroad.It is based on molecular designs and adsorption capacity of polycarboxylate,we do R&D and successfully produce water reducing and retention type polycarboxylate superplasticizer for concrete.With initiating systerm and reaction conditions,we achieve high adaptability.Comparing with PNS and other superplasticizer, PCE superplasticizer has many characteristic advantages in technology and performance as following: (1) low dosage, high rate of water reducing; (2) keep concrete good slumption retention; (3) good compatibility with cement; (4) small shrinkage of concrete to keep the stability of volume and durability; (5) environmental in production and usage. Base on above advantages.
High efficiency CSA expansive agent is a calcium sulphoaluminate expansive agent, which is obtained by firing in rotary kiln. And its main materials are anhydrite calcium sulphoaluminate,calcium oxide,natural gypsum ect. It was prised as international advanced level in 2000 by Hebei province. It also enjoyed the honorary tittles issued by the government,like" high tech product of Hebei province","China emphased promoting new invention patent product" ect. The China Invention Patent Numeber is 02116312.X.It has been applied to the constructions of the capital of Dongzhi Gate transportation junction, Beijing Wanghe bridge, jingchen high-way fifth-ring bridge ,ect. Advantages of CSA expansive agent in mortar/concrete products: Low alkali.CSA Expansive Agent has a very low alkali content (R2O
Description Naphthalene Sulfonate (UNF-5) concrete admixture, a high range water reducer with no air entraining, is commonly referred to as a superplasticizer, also named Naphthalene Sulfonate Formaldehyde Condensate (NSF), SNF, PNS, etc.. Naphthalene Sulfonate (UNF-5) concrete admixture is made of naphthalene, sulfonic acid, formaldehyde and alkali through sulphuration, hydrolyzation, condensation and neutralization reaction. Naphthalene Sulfonate (UNF-5) concrete admixture contains no chloride. It complies with chemical admixture specifications for concrete: ASTM C 494, Type F; ASTM C 1017. Application 1.Naphthalene Sulfonate (UNF-5) concrete admixture is suitable to make autotrophic concrete, steam curing concrete, steel concrete and prestress concrete, all of which are made mainly of portland cement. When concrete added this superplasticizer needs to be steam cured, it requires considerable structural strength. The curing requirements should be pre-tested. 2.Naphthalene Sulfonate (UNF-5) concrete admixture is applicable in areas with the daily lowest temperature of and for making concrete which requires high fluidity, high strength or steam curing. 3.Naphthalene Sulfonate (UNF-5) concrete admixture can be used to make C80 concrete with slump loss between 50mm and 70mm, or C60 concrete with that between 180mm and 220mm. 4.Naphthalene Sulfonate (UNF-5) concrete admixture could be used as a raw material together with other components to make other kinds of admixtures, such as accelerator, retarder, anti-freezing agent and pumping aid to satisfy requirements from different construction projects, techniques, materials and environmental temperatures. 5. Naphthalene Sulfonate (UNF-5) concrete admixture will also fluidize concrete, making it ideal for tremie concreting or other applications where high slumps are desired. 6. Naphthalene Sulfonate (UNF-5) concrete admixture is compatible with Portland Cement, Portland Slag Cement, Fly-ash Cement, Portland Pozzolanic Cement, etc. Features and Benefits 1. High water reducing rate: It has remarkable dispersion and water reducing effect. Its water reducing rate is over 20%. 2. High slump flowability and strength: It enhances the miscibility, fluidity and smoothness of concrete at a regular water/cement ratio and improves the bond stress between concrete and steel bars. 3. Saving cement: It may save cement by 12-25% without sacrificing slump retention and strength. 4. Early Strength and Strengthening Ability: It improves the compressive strength of concrete at same cement quantity and slump loss. 5. Great Compatibility: Naphthalene Sulfonate (UNF-5) concrete admixture can be added to a variety of concrete and improves the physical and mechanical functions of it. By reducing the heat of concrete hydration, it significantly enhances the impermeability of concrete. 6. Improved Compactness: Naphthalene Sulfonate (UNF-5) concrete admixture develops a better pore structure and makes the concrete more compact. It produces high durable concrete of which the anti-infiltrating index is beyond P18. Uses and Dosages 1. Prepare solutions as required. 2. Naphthalene Sulfonate (UNF-5) concrete admixture can be added directly or added in after being dissolved into water. It can be added during mixing and after mixing. The afterward approach can achieve better result. 3. The agent can be combined with other externally applied agents if compatibility test is satisfied. 4. When Naphthalene Sulfonate (UNF-5) concrete admixture is applied in the form of powder, normal dosage ranges from 0.5% to 1.0% of the weight of cementitious material in 1m3 of concrete, while the suggested rate is 0.75% considering technical and economic factors. Package, Storage & Handling 1. Naphthalene Sulfonate (UNF-5) concrete admixture for powder: Woven fabric bag with plastic liner. Net weight: 25kg +/- 0.13 kg. 2. When being handled or stored, special care should be taken to broken package, humidity and moisture to avoid consolidating. If it consolidated, please dry, shatter, then sift it through 0.63mm apertures or make solution before using. 3. Naphthalene Sulfonate (UNF-5) concrete admixture should be stored in a dedicated warehouse that is well-ventilated and dry. It remains effective in one year. 4. Since Naphthalene Sulfonate (UNF-5) concrete admixture is packed in woven plastic bags, though the product is nonflammable, cautions should be taken to avoid fire. 25kg/bag, 15 tons loaded in a 20ft container.
