Improving Cementitious Properties Of Blended Pozzolan Based Materials For Construction Of Low Cost Buildings In Mbeya Region Tanzania
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| Author | : Duwa Hamisi Chengula |
| Publisher | : kassel university press GmbH |
| Total Pages | : 226 |
| Release | : 2018-02-28 |
| Genre | : |
| ISBN | : 3737604428 |
This study therefore investigated and improved cementitious properties of pozzolan blended with calcium hydroxide, gypsum and cement in order to extend its use from low strength mortars to concrete works which can be used for low to medium rise structural applications. Characterization, strength tests and durability tests were performed on pozzolan mixtures under laboratory conditions and the effects of adding gypsum to pozzolan and calcium hydroxide mixtures on the compressive strength and durability of cured concrete specimens were investigated.
| Author | : Ekkehard Fehling |
| Publisher | : BoD – Books on Demand |
| Total Pages | : 310 |
| Release | : 2024-01-01 |
| Genre | : Technology & Engineering |
| ISBN | : 3737611599 |
Sustainable construction, with the overarching goal of reducing the environmental footprint of everything we build is becoming increasingly important and urgent in the light of the climate change the world is facing. The use of innovative and sustainable building materials, especially concrete as the worldwide most commonly used building material, offers a great opportunity to significantly reduce climate-relevant emissions in the construction sector. Due to their performance and reliable durability, the use of innovative high-performance concretes will help to reduce the need for new constructions and to sustainably repair existing infrastructure. In new buildings in particular, the use of high-performance materials can help to save energy and natural resources, which reduces climate-relevant emissions and thus global warming. With the current HiPerMat 6, we are responding to the growing understanding of the impact of our construction activities on the environment by placing greater emphasis on sustainability issues.
| Author | : Bernhard Middendorf |
| Publisher | : BoD – Books on Demand |
| Total Pages | : 206 |
| Release | : 2020-01-01 |
| Genre | : Technology & Engineering |
| ISBN | : 3737608288 |
With HiPerMat 5 on March 11-13, 2020 the 5th International Symposium on Ultra-High Performance Concrete and High Performance Construction Materials documents the actual state of development of application in the fields of: Material Science and Development, Composite Concrete Materials, Strength and Deformation behaviour of UHPC, Durability and Sustainability of UHPC, Design and Construction with UHPC, Structural Modelling and Optimisation, Lightweight Concrete Structures, High-Precision Manufacturing for Pre-Fabrication, Nanotechnology for Construction Materials, Innovative Applications, Smart Construction Materials, This volume contains the short versions (two pages) of all contributions that have been accepted for publication at HiPerMat 5.
| Author | : Alphose Zingoni |
| Publisher | : CRC Press |
| Total Pages | : 960 |
| Release | : 2013-08-15 |
| Genre | : Science |
| ISBN | : 1315850788 |
Research and Applications in Structural Engineering, Mechanics and Computation contains the Proceedings of the Fifth International Conference on Structural Engineering, Mechanics and Computation (SEMC 2013, Cape Town, South Africa, 2-4 September 2013). Over 420 papers are featured. Many topics are covered, but the contributions may be seen to fall
| Author | : P.K. Mehta |
| Publisher | : CRC Press |
| Total Pages | : 224 |
| Release | : 1991-12-03 |
| Genre | : Architecture |
| ISBN | : 0203498259 |
Concrete has clearly emerged as the most economical and durable material for the building of the vast majority of marine structures. Reinforced concrete too has overcome the technological problems making it a suitable material for the construction of advanced marine structures such as offshore drilling platforms, superspan bridges and undersea tunn
| Author | : Shashank Bishnoi |
| Publisher | : Springer Nature |
| Total Pages | : 845 |
| Release | : 2020-04-13 |
| Genre | : Technology & Engineering |
| ISBN | : 9811528063 |
This volume comprises the proceedings of the Third International Conference on Calcined Clays for Sustainable Concrete held in New Delhi, India in October 2019. The papers cover topics related to geology of clay, hydration and performance of blended systems with calcined clays, alkali activated binders, and economic and environmental impacts of the use of calcined clays in cement-based materials. The book presents research on influence of processing on reactivity of calcined clays, influence of clay mineralogy on reactivity, geology of clay deposits, and the environmental impact of use of calcined clays in cement and concrete and field applications of calcined clay in concrete. Apart from giving an overview of the progress of research during the last two years, this work also covers the state-of-the art on the practical aspects of production and use of calcined clays in construction. The contents of this volume will prove useful to researchers and graduate students working in the areas of cement chemistry, cement production, and concrete design.
| Author | : Wieslaw Kurdowski |
| Publisher | : Springer Science & Business |
| Total Pages | : 705 |
| Release | : 2014-04-24 |
| Genre | : Science |
| ISBN | : 9400779453 |
This monograph describes cement clinker formation. It covers multicomponent systems, clinker phase structures and their reactions with water, hydrate composition and structure, as well as their physical properties. The mineral additions to cement are described as are their influence on cement-paste properties. Special cements are also discussed. The microstructure of concrete is then presented, and special emphasis is given to the role of the interfacial transition zone, and the corrosion processes in the light of cement-phase composition, mineral additions and w/c ratio. The admixtures' role in modern concrete technology is described with an emphasis on superplasticizer chemistry and its cement-paste rheological modification mechanism. Cement with atypical properties, such as calcium aluminate, white, low energy and expansive cements are characterized. The last part of the book is devoted to special types of concrete such as self compacting and to reactive powders.
| Author | : William C. Ballowe |
| Publisher | : |
| Total Pages | : 28 |
| Release | : 1961 |
| Genre | : Nuclear fuel rods |
| ISBN | : |
The experiments described are a comparison of rod bump-period, rod oscillator, rod drop, and pulsed neutron methods normally used for measuring control element strength in a multiplying system. The results show the rod oscillator technique to be dependent on detector locations. It is concluded that small reactivity changes are best measured by the rod bump-period technique while for large reactivities the pulsed neutron method is the only method of the four which has a straight forward interpretation.
| Author | : International Monetary Fund. Research Dept. |
| Publisher | : International Monetary Fund |
| Total Pages | : 234 |
| Release | : 2014-04-08 |
| Genre | : Business & Economics |
| ISBN | : 1484308344 |
Global activity has broadly strengthened and is expected to improve further in 2014–15, according to the April 2014 WEO, with much of the impetus for growth coming from advanced economies. Although downside risks have diminished overall, lower-than-expected inflation poses risks for advanced economies, there is increased financial volatility in emerging market economies, and increases in the cost of capital will likely dampen investment and weigh on growth. Advanced economy policymakers need to avoid a premature withdrawal of monetary accommodation. Emerging market economy policymakers must adopt measures to changing fundamentals, facilitate external adjustment, further monetary policy tightening, and carry out structural reforms. The report includes a chapter that analyzes the causes of worldwide decreases in real interest rates since the 1980s and concludes that global rates can be expected to rise in the medium term, but only moderately. Another chapter examines factors behind the fluctuations in emerging market economies’ growth and concludes that strong growth in China played a key role in buffering the effects of the global financial crisis in these economies.
| Author | : Hosam Saleh |
| Publisher | : BoD – Books on Demand |
| Total Pages | : 238 |
| Release | : 2021-06-09 |
| Genre | : Technology & Engineering |
| ISBN | : 1839623144 |
Cement is the basis of the building and construction industry and of fundamental importance for many civil engineering applications. As such, the cement industry is one of the key industries worldwide necessary for the current and future sustainable development of society. Despite its undisputed importance, the cement industry is one of those industrial branches predominately responsible for high energy consumption and excessive generation of large amounts of carbon dioxide and other contaminants that significantly endanger human health and the environment and contributes to global warming.In this context, nanomaterials, polymeric materials, and natural additives are being used for cement enhancement in various applications. This book examines these novel materials and their optimization, characterization, and sustainable application in the building industry and for stabilizing hazardous waste.
