0
Portland cement is used to make concrete. And concrete is what we build things with. No large structures could exist without it, and concrete is used even in the construction of most smaller structures - like houses. Concrete forms a foundation or footing for most structures in modern societies. And aside from its use in concrete, cement is used in motar for applications in masonry. We also make stucco out of it, and stucco is an exterior finish for many homes and small structures. Additionally, most "regular" grout for tile and stonework is made from cement. The "fuzzy" term infrastructure includes roadways. Imagine roadways with no concrete. How about influent and effluent waterways? Most of these are built with concrete. We could go on, but we'd be here all day. Concrete is all around us. We just don't see it unless we look for it. Start looking and thinking about it and see what you can see.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoJust look around to see all the uses of concrete in our daily lives! Concrete made of Portland Cement is a subject to all types of degradation starting with Carbonation as soon as it comes in contact with the atmosphere.
The thing most people overlook is that when concrete is placed, the water in the mix in addition to hydrating the concrete, is trying to evaporate out of the matrix to the atmosphere. In doing so, Bleed water is expelled to a surface. The channels this water travels through is called a gel-pore or capillary system. Once the water is gone -- this capillary system remains open allowing contaminates to enter the concrete. Concrete is a Big Sponge that breaths for years after it is poured.
A sealer to protect it is Vital to Longevity. Choose a sealer wisely. Surface membrane type sealers don't last! Stay away from a sealer that cautions Do Not expose to metals or glass. That is a Sodium Silicate based product that is gone in less than a year! Any sealer that allows for another coating at some future date?? Doesn't this beg the question of "What happened to the first application"?
Get a penetrating sealer to seal the gel-pore system, that doesn't form a film membrane and has a 15 year warranty for water proofing.
Add your answer:
Earn +20 pts
Difference between ordinary Portland cement and puzzalona Portland cement?
OPC - Ordinary Portland cementOPC - Materials used - Argillaceous and calcareous materialsPPC - Portland Pozzolona CementPPC - OPC + Pozzolonoc materials(fly ash, volcanic ash, pumicite at the time of grinding).
What is Portland cement made of?
Portland cement is made of,CaoSiO2Al2O3Fe2O3MgOAlkaliesSO3
What is suitable for reinforced cement concrete slab ordinary portland cement or Portland Pozzolana Cement?
Ordinary Portland cement is suitable. As per IRC 21, Portland Pozzolana Cement is limited for Plain Concrete only.
Who invented Portland cement?
Thomas Edison invented the Edison Portland Cement company in 1899.
Who invented the cement?
Joseph Aspdin, a leeds buider.Took the patent of portland cement on 21st october 1824He named portland cement in resemblance with a natural stone occurring at portland in England.
Difference between ordinary Portland cement and puzzalona Portland cement?
OPC - Ordinary Portland cementOPC - Materials used - Argillaceous and calcareous materialsPPC - Portland Pozzolona CementPPC - OPC + Pozzolonoc materials(fly ash, volcanic ash, pumicite at the time of grinding).
Write note on additives in portland cement?
Some of the additives used in portland cement are,GypsumCoal dustMagnesiaAlkaliesIron oxide
What is the different between ordinary Portland cement and Portland cement?
Ordinary Portland cement is the most common cement used in the world, made from stucco, concrete, mortar and other materials. Slag cement is usually mixed with Portland cement and is the substance leftover after metal has been smelted from raw ore.
What are the various types of Ordinary Portland Cement?
The various types of ordinary portland cement are,Ordinary portland cement 33 gradeOrdinary portland cement 43 gradeOrdinary portland cement 53 grade
Should Portland cement be capitalized?
According to the Portland Cement Association, portland cement should not be capitalized.
What is Portland cement made of?
Portland cement is made of,CaoSiO2Al2O3Fe2O3MgOAlkaliesSO3
What are the different types of cement?
Type-I - Ordinary portland cement used in general constructionType-II - Portland pozzolana cement , moderate heat of hydrationType- III - Rapid hardening cement used for quick setting worksType-IV - low heat cement, low heat of hydrationType-V - Sulphate resisting cement used in sewage linings,marine construction.
What is suitable for reinforced cement concrete slab ordinary portland cement or Portland Pozzolana Cement?
Ordinary Portland cement is suitable. As per IRC 21, Portland Pozzolana Cement is limited for Plain Concrete only.
Can acid be used to dissolve Portland cement?
Yes. Acids can dissolve all the constituents of Portland cement with the exception of hydrated silica, which forms a residue.
What is the difference between portland cement and type II cement?
The portland cement is used in general construction.The type-II cement is used in general concrete construction exposed to moderate sulphate action. i.e.,Concrete to be used in marine conditions.Concrete to be used in the construction of sewage treatment works.
Flowchart for the manufacturing of Portland cement?
this chart was show the process of portland cement
How does Portland cement differ chemically from other cement?
I assume you are contrasting portland cement with fly ash to portland cement with powdered slag? (Fly ash is from coal furnaces, powdered slag is from oil-burning furnaces). Slag is very similar to portland cement, and can be used to cheaply replace up to 50% of portland cement in concrete. This is less expensive, and the slag makes the hardened concrete more resistant to de-icers. Fly ash is not similar to portland cement, but is also good to resist de-icers. But since fly ash is not similar to portland cement, only 20 to 30% of portland cement can be replaced by it. The main difference in chemistry are the amounts of oxygen-containing elements. (Called 'oxides'). For example, portland cement has 65% of C2O, Slag cement has 45%, and Fly ash contains 25% For SiO2 portland cement 20%, Slag cement 33%, and Fly ash 37% For Al2O3 portland cement 4%, Slag cement 10%, Fly ash 16%. There are other very minor differences in chemistry.
