CMA INDIA

Portland Pozzolana cement is manufactured by synthesising Ordinary Portland cement with a mixture of pozzolanic materials in uniform proportions. It is also known as PPC cement in short.  In this blog, we’re going to discuss the applications, properties, and characteristics of PPC in detail. Pozzolana or Pozzolanic material Pozzolana is a type of volcanic powder that is found near Mount Vesuvius in Italy. Pozzolanic material can also be processed artificially, with silica and alumina as the constituent particles. Naturally, this material does not contain any cement related properties. But when mixed with water, lime and calcium hydroxide, it reacts to form a compound that is cementitious. Artificial Pozzolana  Contains silica fume, rice husk, blast furnace slag, fly ash. Natural Pozzolana   Contains diatomaceous earth, pumice, burnt clay.  How does the manufacturing of PPC take place? The raw materials used here diffe...

With population and pollution growing every year, there is an urgent need to revamp the waste management processes being used. Landfills are now overflowing, and the incineration process consumes excessive energy while increasing carbon emission. The cement industry leaders have now come up with an idea of utilizing waste to fuel kilns used in cement production. Sustainability The term is used to express the need of sustaining ourselves without hampering the chances of future generations to meet their needs. Under the cement sustainability initiative the leading organizations in the cement industry work towards lowering the carbon emissions and consumption of non-renewable resources. Coal Consumption: Overview The supply of coal to the cement industry dropped to a mere 35% in 2013, from a whopping 75% in 2003. Currently, the cement industry gets only 5% coal from the production in the country, while the rest of its depends are fulfilled through imports. We i...

The most important step to maintain the strength of a concrete structure is to ensure that it does not develop cracks. One of the major problems that occurs due to the hardening of concrete is shrinkage cracks . It weakens the structure with time. So to ensure that it does not happen, concrete curing is performed. Curing is the process of ensuring that moisture stays on the concrete to avoid it from hardening and developing cracks. Due to proper hydration, the strength and durability of concrete structure also increases. Various concrete suppliers too emphasize the importance of curing to the buyers beforehand.  Curing takes place immediately after placing the concrete and deals with maintenance of the desired temperature and moisture for extended periods of time. Just after the structure has been constructed and the surface is hard enough, such that a person can walk on it without damaging the concrete, curing should be started then and there.  Methods of curing depe...

When you are putting your money and resources into a particular construction project like your home, garage, basement, etc. then it’s better to make sure that the material used for the same is of good quality. Out of all construction elements, one key material is cement.  Now imagine, you are planning to extend the balcony of your house. So you get some local workers to do the job, buy construction material and in case of cement, you look for various Cement manufacturing companies to select the best of the best. But, will it be enough?  The answer is no! You should be able to assess the quality of cement too. Because in huge projects like residential apartments, bridges, roads etc. there are numerous engineers present onsite, who do the quality analysis. But here you have to do the job by yourself. The overall strength of your structure depends on a variety of factors, and the quality of the cement you are using is one of them. Excellent quality cement should always...

India, ranking at the second place after China, is one of the leading manufacturers of cement globally. Development programs like “Housing for All by 2022” and many others are dependent upon the cement industry and relay the message that it is an integral part of our economy. The forecasted consumption of cement in the country in 2019 is about 23 MTPA (Million Tonnes per Annum) more than that of 2018. This increase in demand and the subsequent expected increase in  manufacturing of cement  will lead to an increase in the consumption of fuels and energy. Increasing Demand With new government policies aiming to ease the credit to homebuyers, the housing sector leads the current cement demand with 65%. Trailing behind are public infrastructure with 20% demand and housing and real estate with 15%. Cement Production Capacity Considering the increasing demand and the government’s willingness to complete their programs, the  manufacturing of cement  in India...

Cement, a primary constituent of mortar, concrete, plaster, etc., is a prominent construction material and is only behind water as the most-consumed resource of our planet. With the advancement in technology and requirements of construction, there exist various types of cement to meet every demand. Different types are achieved by minor adjustments in which the ingredients are used during the  cement production process. Primary Categorization: ·  Hydraulic Cement –  The dry ingredients in this type of cement react with water and become adhesive and hard. For eg.  Portland cement. ·  Non-Hydraulic Cement –  This type of cement reacts with the atmospheric CO2 as it dries and is resistant to chemicals after setting. 1. Ordinary Portland Cement or OPC · It is the most commonly used cement type and is suitable for general concrete construction. · It has a global production of about 3.8 million cubic meters per annum. · It has good resistance...