- Construction of buildings for either residential purpose or commercial purpose or industrial purpose or as an integrated form.
- Heavy and civil engineering construction. It includes sewers, roads, highways, bridges, tunnels etc.
- Specialized constructions like carpentry, painting, plumbing and electrical works.
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Application of Dyes and Pigments |
Dyes & Pigments in Construction Industry
Greater the solar radiation, higher will be the heat
absorption by the roofs of the houses. To dissipate the heat, 'Cool Coating'
technology has been invented. This new technology focuses on reflecting
solar radiation. If traditional pigment colors are used for coating, the
roof will absorb infrared radiation. Therefore, a new type of pigments has
been taken for this purpose. These pigments are called as Cool Pigments. The
advantage of these pigments over the traditional pigments is that they
absorb less infrared rays from the sun.
For coating purpose, two types of pigments are used. They
are Organic pigments and Inorganic pigments. Organic pigments gives various
bright colors, but, these colors are not very lightfast and opaque as
compare to inorganic pigments. Inorganic pigments are used for those
applications where color warranty should be there against sunlight and other
natural elements. For metal roofing, a special type of pigments are used,
which is called as 'Complex Inorganic Colored Pigments'.
Painting or Paint Analysis is a very common maintenance
project in all building, including commercial. Residential and production
purposes. By applying a new coat of paint on the walls of the building, can
change the appearance of the entire building. It also brings a new touch of
fashion in this regards. Thorough analysis of paint can give the knowledge
about the composition of various pigments which are used in the paint.
Most new technological paints are moisture aversive in
nature. Some improved technological pigments are used in these types of
paints. When these paints are used on the wall, then these paints prevent
moisture from entering the walls.
In the recent years, people are most concerning about the
safety in the public buildings and at workplaces. Some incidents in the
underground railway stations and crowded public places, has drawn out
attention towards the various safety measures. For this purpose, some
safety-way guidance systems have been brought into existence. In these
systems, some glowing pigments like phosphorescent pigments are used. Under
darkness, due to power failure, these materials in the system start to glow
brightly. This thing helps the people to find out their rescue way.
Generally, these systems are fitted in the safety passages, public
buildings, factories, stations & tunnels, ships etc.
Wooden materials are frequently used in all kind of
construction works, right from houses to factories, from bridges to
railways. But, unfortunately, we don't give reasonable care on the
preservation of these wooden materials. So, it will be better for all of us
if we conserve the wooden materials instead of their replacement. To
conserve these wooden materials, various coating and painting methods have
been developed. In each kind of coating and painting methods, some specific
kinds of pigments are used.
Before the placement of the concrete, pigments are mixed
with it to create color. This is the most common method of concrete
colorizing. The quantity in which the pigments are mixed and the proportion
of their mixing can be altered. By altering these proportion and quantity,
the color varieties can be brought in the concretes.
Pigments are used in various commonly used house-roofing
products. These pigments are used in tiles, metals, panels and shingles.
Various cool pigments are used today for coating concrete, clay tiles and
metal panels.
Up to a certain extent, what will be the quality of the
end products of various constructions, depends upon the choice of the
pigments. After years of observation and testing of colored concretes in
different sites, it can be said that inorganic oxide pigments have a high
degree of fastness properties.
Colored asphalt is used in the traffic direction, for
sporting facilities, in gardens, at school yards and squares. Now, it should
have different attractive colors for different uses. The color fastness and
durability will depend upon the pigments and the proportion in which they
are combined with each other.
