Uses and Applications of Sodium Silicate as Aggregate Diluents

Do you know what sodium silicate is? Do you know what the main uses and applications of sodium silicate are?

Subject: Uses and applications of liquid and solid sodium silicate

Date: 15-May-2012 Source: QuimiNet Related Industries: Construction, Adhesives, Resins and coatings, Textile , Adhesives, Medicine and Health

Chemical Substance

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When used in cement paste, sodium silicate solution deflocculates the clay mineral components and lime paste. This is achieved through a combination of effects, including absorption of the aggregate surface, donation of sodium ions (Na +), and precipitation of calcium ions (Ca + +) in the paste. The real effect of this deflocculation process is a reduction in an amount of water needed to keep the cement paste in a pumpable viscosity range. Sodium silicate is preferred as a deflocculator in the preparation of stable solutions of fusible clay for casting into the pores of the plaster molds. In fusible clay, which is easily pumpable, silicates act as a stabilizer for any alkali present. Because less water is needed, the fusible clay is more dense and therefore the resulting piece is stronger. It takes less time to set in the mold and there is less shrinkage as it dries. In the processing of raw clay, silicates’ depressant action is used to remove impurities such as quartz, feldspar, mica, iron oxide, etc.

Uses and Applications of Sodium Silicate for Chemical Injection

For chemical injection or solidification of subsoil, sodium silicate can be used in the following situations: (1) where subsurface formations need to be strong enough to withstand the required load, such as low walls or foundations, (2) where water-permeable subsurface pores allow the flooding of mines, wells and tunnels, (3) to prevent loss of water in dams, (4) to seal pores in the concrete or brick work that can be found in drains or underground construction. In the "Joosten Process", sodium silicate and calcium chloride are separately injected in the subsoil. They combine to form an insoluble gel that sets and seals the pores and soils with low resistance.

Uses and Applications of Sodium Silicate in the Treatment of Concrete

There are two different ways sodium silicates can be used to increase the durability of concrete. A solution of sodium silicate and a curing agent can be applied to the surface of a fresh layer of concrete after the area has been covered and kept moist for 24 hours. The silicate application closes the surface pores and seals them while wet. To treat the concrete after it is completely dry or hardened, silicates are applied until they penetrate the concrete. Lime and other ingredients added into the wet concrete react slowly with a penetrating silicate solution, forming an insoluble gel in the pores of the concrete that increase resistance to wear, water, grease or acid.

Industry	Function of the Silicate	Primary Benefit
CERAMICS
Refractory cements	Binding Agent	Air Hardening
Casting	Deflocculator	Increased Solids
Thinner paste	Deflocculator	Water Reduction
Refined clay	Deflocculator	Improved Fluidity
CONSTRUCTION
Concrete hardening	Chemical Reaction, Sealing	Grease and Dust Proofing, Acid Resistant
Acid-resistant cements	Binder	Ease of Use, Economical
Refractory cements	Binder	Hard Coating, Excellent Thermal Action, Acid Resistant
Thermal insulation	Adhesive, Film Production	Fireproof Layer
Soil solidification	Gel Reaction	Economical Binder
PETROLEUM
Drilling mud	Colloidal Control	Control Geological Formation
Corrosion prevention	Chemical Reaction	Effective, Reduce Costs
Emulsion breakdown	Chemical Reaction	Emulsion Breaker
PAPER
Raw water treatment	Flocculation	Greater Clarity in Effluent
Master box additive	Flocculation	Retains Thin and Line Loads
Coverings	Film Formation	Grease-proof, Resistant to Moisture
Bleach with peroxide paste	Chemical Reaction	Preserves Peroxide, Produces More White Paste
Adhesives for laminating and labeling	Adhesion	Strong Layers, Economical
Pure water treatment	Flocculation	Flocculant Size Increase, Enhanced Clarification
De-inking	Detergent	Ink Removal
CARTON
Fiber drums	Adhesion	Adds Rigidity, Lower Cost
Spiral tubing	Adhesion	Adds Rigidity, Lower Cost
TEXTILES
Peroxide bleach	Chemical Reaction	Preserves Peroxide, Increases Whiteness
Dyes	pH Buffer	Ink Fixing, Lower Processing Costs
CLEANING COMPOUNDS / DETERGENTS
Detergent powder	Binder, Corrosion Inhibitor, Deflocculator	Assist the Drying and Agglomeration Processes, Corrosion Protection and Detergent
Liquid soaps and cleaners	pH Buffer, Deflocculator	Detergent, Protection and Inhibition of Corrosion
WATER TREATMENT
Raw water and waste treatment	Flocculant	Increase the Size and Accelerate Formation of Flocculant
Prevention of corrosion in water lines	Film Formation	Protective Film inhibits Metal Corrosion
Control of lead and copper treatment	Chemical Reaction	Reduce Level of Toxic Metals
Stabilization of iron and magnesium	Chemical Reaction	Improve Taste, Eliminates Red Water
METALS
Porous casting	Impregnation	Seal Leaks and Fill Voids
Welding rod covers	Binder	Good Binding and Flux Action
Mineral flotation	Deflocculator	Separation Agent and Corrosion Control
Casting molds and binders	Binder	Set Rapidly
Smelting powder	Agglomeration	Remove Dust, Improve Environmental Conditions
Pelletizing	Binder	Assist and Increase the Formation of Pellets
Briquetting	Binder	Improve Flow Characteristics and Cohesive Properties
WASTE TREATMENT
Solidification and stabilization	Binder, Chemical Reaction	Reduce Porosity and Setting Time

Suppliers of Sodium Silicate

We are pleased to present SIDESA, a supplier of sodium silicate.

In addition to liquid sodium silicates, SIDESA has a wide variety of specialties to meet the needs of all users including pentahydrate and anhydrous sodium metasilicates, G and GD silicate powder, hydro and zero gels, zeolites, etc.

View the Profile, Products, Address and Phone Number for SIDESA

Or, contact SIDESA directly to request more information on liquid sodium silicate and solid sodium silicate.

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Emmanuel R. More than 1 year ago This article is very interesting. Now I know the the benefits when using this product.
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ajay u. More than 1 year ago very good and informative
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