Construction Chem

Construction applications: SUPERPLASTICIZERS are used to reduce water in CONCRETE formulations. specially formulated organic plasticizer improves the workability of concrete, reducing water requirement and making the concrete stronger. It retards the setting of concrete so that transportation of RMC is not a problem. Benefits of these additives include improved strength, improved workability, improved durability of cement mixtures. This polymer mixture in cement mixtures control air pore content and prevent AGGLOMERATION of powders during the spray-drying process from the powder manufacturing and storage. Coating formulations with RXSOL-67-6704-210 containing polymers prevent calcium ions from being formed as LIME on concrete surface and improve the appearance and durability of coating.

Superplasticizer RXSOL-67-6704-210 ( High Range Concrete Superplasticiser )  is a brown color sulphonated formaldehyde condensate and sulphonated naphthalene with new generation polymners based admixture for use as a Superplasticizing admixture or high ranger Water Reducerad mixture for all types of concrete. This is in conformation to IS Code 9103:1999. Also meets the requirement of ASTM C 494 & type G and IS 9103-2003,  Suitable for ready mix concrete plants, it is capable of high workability retention up to 2-3 hrs with set retarding effect that helps to produce flowing concrete in hot climates. Further, it assists in long distance transportation of concrete at tropical atmosphere.

This has been formulated to reduce water requirement and to provide excellent plasticity and higher slump for both horizontal and vertical applications. RXSOL-67-6704-210 is manufactured under stringent quality control to ensure uniform and superior performance.

RXSOL-67-6704-210 imparts strong dispersion in the concrete reducing the total water demand in the mix. The reduction in water content also helps to achieve high ultimate strength. This is also very much useful for concrete with free pouring and pumpable consistency. Cement content of the concrete can also be economized with RXSOL-67-6704-210 due to its high cement dispersion property.

Paraffin wax is mostly found as a white, odorless, tasteless, waxy solid, with a typical melting point between about 46 and 68 °C (115 and 154 °F), and a density of around 900 kg/m3. It is insoluble in water, but soluble in ether, benzene, and certain esters. Paraffin is unaffected by most common chemical reagents but burns readily. Its heat of combustion is 42 MJ/kg.

Paraffin wax is an excellent electrical insulator, with a resistivity of between 1013 and 1017 ohm metre.  This is better than nearly all other materials except some plastics (notably Teflon). It is an effective neutron moderator and was used in James Chadwick's 1932 experiments to identify the neutron.

Paraffin wax is an excellent material for storing heat, with a specific heat capacity of 2.14–2.9 J g−1 K−1 (joules per gram kelvin) and a heat of fusion of 200–220 J g−1.  Paraffin wax phase-change cooling coupled with retractable radiators was used to cool the electronics of the Lunar Roving Vehicle during the manned missions to the Moon in the early 1970s.  Wax expands considerably when it melts and this allows its use in wax element thermostats for industrial, domestic and, particularly, automobile purposes.

Corrosion Inhibitor Admixture CIA 222 Premium is formulated to provide corrosion protection to reinforcing steel within concrete. When incorporated into the concrete mix as recommended, it helps create a protective environment around reinforcement and reduces the potential for corrosion-related deterioration.

Note: Actual dosage, chemical composition, compatibility with cement/admixtures, chloride resistance, and performance specifications should be confirmed from the manufacturer's TDS, SDS, and technical recommendations before commercial use.

Calcium Nitrate In wastewater treatment, calcium nitrate has two key purposes: to remove odors caused by hydrogen sulfide and to prevent oxygen deficiency. Calcium nitrate has been investigated as an agent to control sulfide generation by sulfate reducing bacteria in oily, waste water environments.

Cupric Oxide in Ceramic Formulations 

Copper Oxide is one of the earliest colorants used by potters. As previously described, it is used to produce a blue gray in a 50% mixture with frit, a green color in oxidizing firings up to 5% where it moves toward black, and a vibrant red color in reduction firings. It can be used as a wash and as a brushed-on application on bisqueware. It is used with enamel frits to increase the adherence of glazes. When used as a flux it can decrease the melting temperature required to increase the fluidity in the melt of the glaze. 

Cupric Oxide in Fireworks and Pyrotechnics 

Other than the aforementioned use to produce a moderate blue color it can be used as a flash powder oxidizer because of its fast reaction with magnesium, aluminum, or a combination of the two, magnalium powder. When used in a thermite reaction it reacts quickly to form large amounts of molten copper metal that is known to send out droplets of molten metal and should be treated with extreme caution. This is used for welding thick copper wires in electrical connections. It is sometimes used in fireworks to produce a strobe or crackling stars effect.