Corrosion of reinforced concrete is one of the major problems in the construction industry causing premature deterioration of concrete structures well before their service life. This has placed incredible financial burden on many projects and also placed safety of users at risk. A research work was carried out to evaluate the effect of water cement ratio on corrosion of steel in reinforced conc...

A persistent question in industrial economics is the underpinning of the link between market concentration and price. How much of the link can be attributed to market power and how much to market efficiency? This paper develops a theoretical model to address that question. Applied to the US portland cement industry, the model indicates that both impacts matter. In relative terms, however, the m...

This paper presents a cement plant simulator designed on LabVIEW platform. It generates process data and electrical parameters for all the lines of workshops in the cement industry. The simulated design is universal and applicable to all kinds of cement plants. Client-server architecture is established and the generated parameters are communicated to Matrikon OPC client. Single Line Diagram of ...

0958-9465/$ see front matter Published by Elsevier doi:10.1016/j.cemconcomp.2011.04.008 ⇑ Corresponding author. E-mail addresses: [email protected] (D.P. Bentz), (A.S. Hansen). In the drive to produce more sustainable concretes, considerable emphasis has been placed on replacing cement in concrete mixtures with more sustainable materials, both from a raw materials cost and a CO2 footprint per...

A unique, multi-phase, random, complex, and composite material, concrete provides both strength and impermeability to engineered structures. Unlike most construction materials, the properties of concrete continue to develop over time and in place—assisting processing and fabrication. Testing and quality assurance, however, become more complicated. For instance, having to wait 28 days to ensure ...

Ground granulated blast furnace slag is widely used as a mineral admixture to replace partial Portland cement in the concrete industry. As the amount of slag increases, the late-age compressive strength of concrete mixtures increases. However, after an optimum point, any further increase in slag does not improve the late-age compressive strength. This optimum replacement ratio of slag is a cruc...

Chemical burns account for a small percentage of admissions to burn units. Wet cement is a poorly recognized cause of chemical burn. As the construction industry is growing, individuals will likely have more contact with this material and be more prone to its harmful effects. Wet cement can cause severe full-thickness burns with prolonged contact, but this property is not well known among profe...

A system dynamics model based on the dynamic interactions among a number of system components is developed to estimate CO(2) emissions from the cement industry in India. The CO(2) emissions are projected to reach 396.89 million tonnes by the year 2020 if the existing cement making technological options are followed. Policy options of population growth stabilisation, energy conservation and stru...

Even in the 21st century, millions of people are working daily in a dusty environment. They are exposed to different types of health hazards such as fume, gases and dust, which are risk factors in developing occupational disease. Cement industry is involved in the development of structure of this advanced and modern world but generates dust during its production. Cement dust causes lung functio...