Pozzolana Cement Production Line

Pozzolana cement is not a new product on the world market. It is widely used in Europe, America and India for massive structures such as dams, bridges, roads and high-rise residential buildings. This article mainly tells a real case that pozzolana cement production promote the national economic development in Garner .

a real case in Garner——pozzolana cement production promote the national economic development

Pozzolan Cement Production Line

This is a real case occurred in Garner, because the building materials, such as cement, roof board, wood and other costs have been rising rapidly, resulting in housing prices are very expensive. Many people can't afford to buy a house, or even the expensive rents also beyond their reach. Finally,government through developing pozzolan cement, saving the economic cost and solving the current dilemma.

The price of cement and cement-based products, especially, has been increasing at an alarming rate. A bag of cement (50kg) leaped from 1,500 cedis in 1992 about 54,000 cedis today.

Pozzolanas are defined as any siliceous or aluminous materials, which react with lime in the presence of water to form cement compounds. They occur either naturally from volcanic materials and tuff or are produced artificially from clays, shale, bauxite, water or fly ash. Ghana is very fortunate to be blessed with all the local materials it takes for the production of various types of cement in addition to ordinary Portland cement.

Now, the good news for Ghanaians is that the Building and Road Research Institute (BRRI) of the Council for Scientific and Industrial Research (CSIR) has conducted research and development activities on the evaluation and production of Pozzolana cement from local raw materials. Through laboratory trials, BRRI has successfully produced Pozzolana cement from bauxite waste and clay, which could be found almost in every district of the country. And the Pozzolana cement is selling at 25, 000 cedis for the same 50kg bag.

The production process for the pozzolana cement is simple. It involves drying, milling, firing, sieving and bagging. The clay, which is just not any clay, undergoes laboratory tests, is air-dried and milled in a hammer mill to a fine size. The samples are afterwards mixed with ground palm kernel shells, which are also used as fuel and turned into nodules in a moduliser.

Pozzolan Cement Production

In an interview with Dr Kweku Amoah-Mensah, the Director of the Institute, told the Ghana News Agency (GNA) that the research programme to develop pozzolana cement started in the 70s and the idea was to reduce the construction industry's total dependence and government's annual expenditure on imported building materials since Ghana had in abundant the local raw materials for the production of pozzolana cement.

According to Dr Amoa-Mensah, the clay pozzolana cement could be used to replace up to 40 per cent of the Portland cement masonry constructions and for non-structural masonry construction, including the production of sandcrete roofing tiles, internal and external walls, floor wet finishing and pavement bricks when used with the Portland cement.

"I believe that with the introduction of pozzolana cement, it will reduce the problem of high cost in cement products and housing will be much more chea per and affordable for every Ghanaian", he added with smiles.

Finally,government through developing pozzolan cement, saving the economic cost, lowering the cost of housing and accelerating the pace of national development. Perhaps, they are fast coming upon the day when the sight of Ghanaians sleeping in the streets because of the scarcity of housing options will be a thing of the past.

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