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What type of rock is used in christ the redeemer?
soapstone and concrete
What is difference between plasticizer and superplasticizer?
Superplasticizers or high range water reducers or dispersants are chemical admixtures that can be added to concrete mixtures to improve workability. Adding 1-2% superplasticizer per unit weight of cement is usually sufficient
Which type of map is used to find out the weather in San Francisco?
mississippi
How does weather affect buildings gravestones monuments and other structures?
. The affect of weather really depends on the material that the building, gravestone or monument is made of. Gravestones used to be made out of concrete and due to weathering some of the inscriptions became unreadable. Our company provides gravestones and memorials that are made of marble and granite which are more weather resistant. This type of material will keep the inscriptions in tact so that they will serve as a memorial for centuries.
Which type of investigation is best used to study global weather patterns?
model-building
What raw materials are used to make concrete?
cementsandcoarse aggregatewater andsome admixtures.
What materials are used to make concrete?
Cement, sand, gravel and water are the most commonly used minimum ingredients to make concrete. However various types of admixtures can be added while making concrete to enhance its properties such as workability, setting time, strength, permiability, durability, chemical resistance, etc.
What is high strength concrete?
Concrete with compressive strength more than 55 MPa is known as high strength concrete.It is used in the construction of bridges, dams. etc.,High strength concrete is produced by adding normal constituents of concrete with admixtures.
What materials were used in making the Donghai bridge?
The donghai bridge was made with your mom
What is the workability of concrete?
The property of concrete which determines the amount of useful work (like- water content, mix proportion, size of aggregate used and use of admixtures) necessary to produce full compaction is called workability.
What is the influence of calcium stearate on the shrinkage of concrete?
Calcium stearate is used to control effloresence in concrete. I don't believe there is any effect on shrinkage. However, it is often added to other concrete admixtures, like water reducers. Those products can effect shrinkage, but usually they help to reduce it.
How does hot weather make concrete crack?
If the correct concrete mix is used and laid properly, hot weather should not make concrete crack. Instead, it is the freeze-thaw cycle that makes concrete crack.
What is difference between first stage and second stage concrete used in powerhouses concreting?
In power house concreting during the installation of turbine units in their final location a second stage concrete is poured in order to embed the turbine units. A second stage concrete shall be non - shrinking,self compacting with quick setting admixtures for an early strength development
You want to know the type of acid used in itching concrete so you can stain concrete?
yes
What type of foundation would most commonly be used for a deck or porch?
concrete piers and a concrete foundation
What type of rock is used in christ the redeemer?
soapstone and concrete
How Much Mortar For Utility Brick?
It depends on the sand itself, if it contains silt ( mud), or it contains sulfates , both will crack the mortar, usually in Iraq its one part of cement to 2.25 parts of sand in middle and south of Iraq as its either contains silt from river sand , or sulfate as its from the desert. You better add some latex and shrinkage compensated additives, or the cheapest is concrete admixtures ( water reducing agents, it will improve the workability of the mix and can lower cement content by 10 % percent. concrete admixtures containing retarders are better from 25 c to very hot weather, use concrete admixtures with accelerators in cold weather. Concrete admixtures are water reducing agents , its universal and subject to ASTM C-494 , you can get it easy, add one litre to 100 kg of cement plus the sand , and its recommended to spray or submerge the bricks in water for 24 hours , you get rock hard bricks, higher adhesion to cement mortar, it will become more water proof,i have seen houses next to Tigris river in Baghdad, flooded with water, no seepage, just the skilled bricklayer saturated the bricks, and used fine cement , another tip is to use hydrated lime as plasticiser it has non shrink capability , if its cheaper than concrete admixtures , use powder form at rate of half kilogram per 100 kg cement , in summer add sugar just one tea spoon to 100 kg cement with hyrdrated lime, so you get retarded mortar mix, extend the mixes pot life, lower waste, use fine sugar, use coffee mill at home or coffee grinder, sugar is good as long as you do not add too much ( one pound with 25 litre water is enough for one ton of cement ).
