blended cement

All about cement, types of cement grades and blended cement!

An English brick layer, Joseph Aspdin, in 1824, first discovered cement and called it Portland cement as it resembled a limestone found in Portland. The Portland cement is made up of –:

·         Lime (CaO)                        60 – 70%

·         Silica (SiO2)                      20 – 25%

·         Alumina (Al2O3)                5 – 10%

·          Ferric oxide (Fe2O3)          2 – 3 %

There are many types of cement out there for engineering and construction purposes like Portland Pozzolana Cement (PPC), Sulphate Resisting Portland Cement (SPC) and Ordinary Portland Cement (OPC). Ordinary Portland Cement should be used for house construction. It is very important to keep in mind the environment of the construction site while selecting a type of cement. This is for durability considerations of buildings and structures. Making a prudent choice now, regarding a type of cement, saves the repair and restoration costs later and also, more importantly, avoids the construction of awry and lopsided structures that may prove calamitous in the future.

The Ordinary Portland Cement is available in the following types of cement grades:

1.      33 Grade Ordinary Portland Cement – The fineness of 33 grade OPC should be between 225 and 280. It has low compressive strength and therefore is not normally used where M-20 or higher grade of concrete is required. It is used for general civil construction work, plastering, flooring, etc.

2.      43 Grade Ordinary Portland Cement – It is the most popular general purpose cement in the country today. It is used where a member takes high tensile stress, for grades of concrete between M-20 and M-30. RCC works, precast items, asbestos products such as sheets, pipes, etc are some of the applications of 43 grade OPC.

3.      53 Grade Ordinary Portland Cement – It is used where concrete grade higher than M-30 is required. It is suitable for cold weather concreting. Its applications include PSC works, bridge, roads, multi-storied buildings etc.

BLENDED CEMENT

DictionaryOfConstruction.com defines blended cement as a hydraulic cement consisting of an intimate and uniform blend of (a) granulated blast-furnace slag and hydrated lime, (b) Portland cement and granulated blast-furnace slag, (c) Portland cement and pozzolan, or (d) Portland-blast-furnace slag, cement, and pozzolan. Blended cement is produced by intergrinding Portland cement clinker with the other materials or by a combination of intergrinding and blending.

The advantages of using blended cements are so many that now they are being considered superior to the hitherto deemed best, OPC category of cements.  The technical advantages of using blended cement include –

1.      It uses less water and therefore helps in keeping the water-cement ratio low.

2.      Using blended cement improves durability of structures as it is finer as compared to OPCs and therefore the permeability of concrete is less.

Using blended cement also has lower environmental impact. The environmental advantages of using blended cement include –

1.      Blended cements save energy to the tune of 0.8 to 1.2 MWH/ton of cement.

2.      7% of total pollution that is caused by cement production alone can be proportionately reduced if more blended cement is used.

3.      Conserves natural resources.

Blended cement

All about blended cement!

Cement is the binding agent, which is used for varied purpose and most of the people are not aware of the different types of cement grades which is why it become more difficult to find the best quality cement. Well without doubt laymen usually don’t pay heed to the technical aspect which is why it becomes way more difficult to find the best quality cement. If you are not aware on how to find the right cement then you are at right stop as here we bring you detailed guide that will help you to have the better understanding about the different grades of cements.

Cement is the necessary ingredient for building therefore it becomes very important to have the better understanding that will help you to have the better insight that will help you to have the drop the dough on the right product that is doing the round in the souk. Without delay, let us quickly delve with the cement its types and most importantly grades of cement and how the blende cement is formed.

 Blended cement is made up of ordinary Portland cement(OPC) with mineral additives like flying ash, silica and other additives are used for making the blended cement. As compared to regular Portland cement blende cement is considered of superior quality. Apart from the quality it is loaded with various advantages therefore, it is important to have the in depth knowledge that will help you to have the complete understanding  so that you can pick the best quality cement that will help you to give better building  both in terms of strength and ductility.

Let us quickly delve in with its various advantagesand why one must use it in order to have the best material that would affect the overall health of your home or any other building.The advantage of cement can be broadly categorized in two categories the former is technical advantage and the latter is ecological or environmental advantage and here we will delve with the both so you can easily become cognizant of its varied advantage.

Advantage of blended cement

·         Less water consumption, as compared to normal Portland cement, that will help you to use little less water.

·         The blended cement is finer as compared to other Portland cement; it reduces the permeability of the cement where by it increases the strength of the structure.

·         It saves the energy as well it becomes way more important to choose blended cements as it various aspect of pertaining environment  and other factor that  one must consider before even making.

 There are different grades of cements that are currently available in the market place and it become important to choose the right grade cement that will help you to choose the typesof cement gradesthat will help you to understand which one should use in accordance ofthe need and requirements. There are three types of cement grades that are used in and they are namely: grade 33, grade 43 grade53.

blended cement

Know the advantages of blended cement

Before going through the advantages of blended cement, it is must to know as what blended cement is all about and how it is made. Basically this type of the cement is made by mixing well the ordinary Portland cement with the mineral ad mixtures and with the additives as the silica fumes, the slag, fly ash and others. This cement is considered as the most superior type of cement as compare to those of OPC category of conventional cements. The advantages of this cement are several and it is categorized in two different parts as the technical advantages and the environmental advantages.

1. The technical advantages

• The blended cement helps in reducing the water demand and thus helps in reducing the ratio of water and cement well.
• It also helps in improving largely the workability for same content of water
• These cements are also finer, when compared to the ordinary Portland cement and the concrete permeability is also less with which gives back the improved durability.

2. The environmental advantages

• It helps greatly in saving energy, as they are obtained after addition of the mineral admixtures and the OPC. The energy which gets utilized for producing the OPC thus gets saved with it.
• The blended cement also helps in conservation of the natural resources as the used admixtures of the minerals are basically the waste products of the steel and thermal plants, with the usage of this product, one can conserve most of the precious minerals as the silica, clay or lime stone.
• Helps in controlling the pollution, the pollution gets controls as the production of cements gets reduces. It has been found in reports that around 7% of the total pollution is caused due to the production of cement and can be reduced proportionally if more of the blended cement is used, one can buy cement online as well.

As world is turning digitally every minute and second, how can the cement companies stay behind with these advanced technologies and innovations. Some of the top notch producers of cement have joined the internet world, and is selling their quality rated cement online. You can buy cement online, as the ordinary Portland cement, the blended cement or any other easily and at affordable prices. You can buy them from their websites, by making use of their apps and others. The world has turned smartly, with the usage of smart phones, the digital innovations where now people prefer more for shopping online. These online stores have become the one stop solution for all, as compare to the physical markets or stores.

Shopping and to buy cement online is a good idea indeed. It helps all in getting all the information about the product, the complete quality components and how it can be used efficiently for the related work. So what are you waiting for? Select the best brand of cement online and buy it now at reasonable prices.