Showing posts with label BUILDING CONSTRUCTION. Show all posts
Showing posts with label BUILDING CONSTRUCTION. Show all posts

Thursday, 4 December 2014

Cyanocrylates or super glue

Cyanocrylates or super glue are a family of strong fast-acting adhesives. These have short shelf life if not used, about 1 year from manufacture if unopened, one month once opened.
Thin super glue has application in woodworking. it can be used as a fast-drying, glossy finish.
WARNING: They have minor toxicity.


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Cold curing adhesive

Cold curing adhesive is any adhesive that sets without the application of heat. Generally epoxy based cold curing adhesive are available.

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Tuesday, 2 December 2014

Cellulose adhesive

Cellulose adhesive is any adhesive such as wallpaper paste, which contains cellulose.
It is also used for fixing delicate pieces of art as well as in conversation of book from loosening and clean off old glue from spines and bookboards.


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Wednesday, 8 October 2014

Cassava

Cassava is a starch glue made from tapioca, the starch flour obtained from the tuberous root of the tropical cassava plants (Manihot esculenta, Manihot dulce).




                     

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Casein glue


Casein glue a glue made from casein (a phosphorous protein found in the milk of mammals; used in glues and paints.), more water resistant than fish or animal glue. It has a drying time that allows enough time for piece to be positioned accurately.



casein glue preparation




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Tuesday, 7 October 2014

Brushing adhesive

Brushing adhesive is any types of adhesive which can be applied in liquid form with a brush.




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Bituminous adhesive

Bituminous adhesive is any adhesive based on bitumen or coal tar used for bonding sheet materials such as roofing felt and linoleum.
Hot melted Bituminous adhesive permanently bonds makers and delineators to pavement.


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Water based adhesive

Water borne adhesive or aqueous adhesive or water-based adhesive is any adhesive whose binder
is dissolved or dispersed in water.
Water based adhesive have less or no VOC ( volatile organic compound).
water based adhesive are best for use with at-least one porous substrate such as paper , cardboard or wood because of their absorption or evaporation requirement.




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Sunday, 5 October 2014

Anaerobic adhesive

Anaerobic adhesive is an adhesive which sets by polymerization in the absence of oxygen.
They work by completely filling gap between metal components. Using an anaerobic adhesive prevents loosening by vibrations and also protects joint from corrosion or rust that can be caused by moisture.




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Albumen glue

This type of glue are made of serum albumen, a blood component that is obtainable from either dried soluble blood powder (to which water is added) or fresh animal blood.
Addition of alkali to albumen-water mixture improves adhesive property.
A considerable quantity of glue products from blood is used by plywood industry.




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Friday, 3 October 2014

Spray adhesive, aerosol glue

Spray adhesive, aerosol glue is an adhesive stored in a pressurized can and applied by spraying.

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AGENT AND ADMIXTURE

Agent is a material or substance used for its effect on another material or process;
in concreting it is often called an admixture;

Types of agent are listed below.
air-detraining agent, (air-detraining admixture.)
air-entraining agent, (air-entraining admixture.)
alkaline cleaning agent.
binding agent, (binder.)
bonding agent.
cleaning agent.
colouring agent, (colourant.)
emulsifying agent, (emulsifier.)
flocculating agent, (flocculating admixture.)
foaming agent.
polishing agent, (polish.)
release agent.
retarding agent, (retarder.)
surface-acting agent.
suspension agent, (thickening admixture , thickening agent)


Admixture is a material added in small quantities to affect the properties of a concrete or mortar mix.
Types of admixture are listed below
accelerating admixture, (set accelerating admixture, strength accelerating admixture.)
air-detraining admixture.
air-entraining admixture.
anti-foaming admixture.
antifreezing admixture.
bonding admixture.
colouring admixture.
corrosion inhibiting admixture.
expansion producing admixture.
flocculating admixture.
foam forming admixture.
fungicidal admixture.
gas forming admixture.
high range water-reducing admixture, (superplasticizing admixture.)
mortar admixture.
permeability-reducing admixture, (pore filler.)
plasticizing admixture.
set accelerating admixture.
set retarding admixture.
strength accelerating admixture.
superplasticizing admixture.
thickening admixture.
water-reducing admixture.
water-resisting admixture.
waterproofing admixture, (water-resisting admixture.)