cement-based materials has grown in recent years. When a suitable amount is used as a partial replacement for cement, the performance of cement-based materials can be improved through changes in the fresh and hardened states, the modifications in physical, mechanical and chemical properties, as …

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annual cement requirement in Nigeria is about 8.2 million tones and only 4.6 million tones of Portland cement are produced locally. The balance of 3.6 million tonnnnes or more is imported. If aiternative cheap cement can be produced locally, the demand for …

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of infrastructures. Engineering properties of concretes produced from gravels from selected loca-tions in Southwestern Nigeria is the main focus of this paper. 1.1. Study area Southwestern Nigeria lies between latitudes 6°N and 9°N of Greenwich Meridian and longitudes 2.5°E and 6°E of the Equator.

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PHYSICAL AND STRENGTH PROPERTIES OF BRICKS PRODUCED FROM PORTLAND CEMENT AND SAW DUST OF DANIELIA OLIVERII WOOD . David Oriabure EKHUEMELO * Mr. – University of Agriculture Makurdi . Address: Department of Forest Production and Products, 970001, Nigeria Benue State, Nigeria . E-mail: davidekhuemelo@gmail. Owoicho ADEMU

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Applications of agricultural by-product as substitute for non-renewable material in cement production are desirable in stimulating socio-economic development. In this study, Rice Husk Ash (RHA) blended cement was produced by replacing 5%, 7%, 11.25%, 15%, 20.25% and 25% by weight of Ordinary Portland Cement (OPC) clinker with RHA. The cement without RHA serves as the control.

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Clay displays favorable physical and chemical properties for an industrial material and could be a cheap, healthy, and available alternative to cement (Malu et al. 2013). In Nigeria, deposits of kaolin (clay) are widely distributed in many regions with differ properties that might probably due to geological differences (Kefas et al., 2007).

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Nigeria 2.Department of building, University of Jos, Nigeria Abstract:-This study investigates the durability of concrete made with ordinary Portland cement (OPC), ... of concrete made by partial replacement of cement with bamabara and ground nut shell ash in tenary and binary ... The physical properties reveal that the specific gravity of ...

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University of Maiduguri, Borno State, Nigeria 2Department of Forest Resources Management, University of Ibadan, Oyo State, Nigeria *Corresponding Author: femsot@gmail Abstract The study was design to evaluate the physical and mechanical properties of cement-bonded particleboards produced from Afzelia africana wood residues.

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Cement plant laboratories check each step in the manufacture of portland cement by frequent chemical and physical tests. The labs also analyze and test the finished product to ensure that it complies with all industry specifications. The most common way to manufacture portland cement is through a dry method.

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and alumina. Finished cement is produced by finely grinding together around 95% cement clinker with 5% gypsum (or anhydrite) which helps to retard the setting time of the cement. The quality of cement clinker is directly related to the chemistry of the raw materials used. Around 80–90% of raw material for the kiln feed is limestone.

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1.Department of Civil Engineering, The Polytechnic Ibadan, Nigeria 2.BTStruct & Partners (Civil & Structural Engineers), Bodija, Ibadan, Nigeria Abstract The study is aimed at examining the comparative analysis of the strength and physical properties of concrete …

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Yahaya et al. (2014) reports that cement varying chemical properties and physical characteristics exhibit different properties on hydration. Despite many research carried out on the strength of concrete with relation to the brand of PC used, it is a common practice …

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Cement is the general name given to various from phosphoric acid production which was integrand mixtures of aluminates, silicates and clay while mortal with blast furnace slag (BFS), anhydrate gypsum and is produced, by mixing slaked lime with sand and O.P.C clinker or …

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ABSTRACT This study is a comparative analysis of the use of coal, fuel oil and natural gas for cement production noting their physical and chemical properties, cost and availability, impact on the environment and human health. Out of the seven cement manufacturing industries in Nigeria, three industries use these fuels were selected for the study.…

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the Chemical and Physical Properties of the Cements ... cements are produced specifically for various applications ... There are many locally operating cement companies in Nigeria which are Ordinary Portland all producing Cement (OPC) using either the process or the wet dry process. Some of the companies are Ukpila, Yandev,

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Physical and mechanical properties of cement bonded strand board produced from Gmelina arborea (Roxb.) harvesting residues Owoyemi J. M.1*, Ogunrinde O. S.2 and Oyeleye I. O.1 1Department of Forestry and Wood Technology, Federal University of Technology, Akure, Nigeria.

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Physical and mechanical properties of flakeboard produced from recycled CCA-treated wood. Forest Products Journal 54(2):89-94. Ma LF, Yamaguchi H, Pulido OR, Sasaki H, Kawai S (2002). Production and properties of orientated cement-bonded boards from sugi, in Wood-Cement Composites in the Asia-Pacific Region, ed P.D. Evans, ACIAR Proceedings No ...

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the cement plants and adjourning communities to the plants, the various variables which come into play in the efficient performance or otherwise of an ESP need to be examined. Therefore, this study investigates the physical and morphological properties of cement particles generated from Nigerian cement plants and how

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Construction projects require cement, which must have definite qualities so as to play its part separately in structure. The compressive strength of cement and, consequently, its physical properties could vary as a result of variations in the raw materials, as well as in manufacturing conditions. Therefore, an experimental study has been checked out herein by investigating the mechanical and ...

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ABSTRACT. This study is a comparative analysis of the use of coal, fuel oil and natural gas for cement production noting their physical and chemical properties, cost and availability, impact on the environment and human health. Out of the seven cement manufacturing industries in Nigeria, three industries use these fuels were selected for the study.

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or the purpose of this study, sandcrete block is a walling unit produced from sand, cement and water It is widely used in Nigeria as a walling unit The quality of blocks is a function of the method employed in the production and the properties of the constituent materials Sandcrete blocks are available for the construction of load bearing and non

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about 10.3billion eggs were produced per annul in Nigeria. It also put the per capital consumption of egg at 65 per year.It is evident that egg shell waste is available in abundant quantity. Egg shell ash has lime content which is similar to the property of cement it can be used as a pozzollana in concrete, by

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Being this important there is the need to investigate the properties of some of the brands of cement available in the Nigerian market. Some researchers have done some work on some properties of cement. Yahaya (2009) did some classification of Nigerian cement on the basis of their physical and chemical properties.

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The strength characteristics of concrete made from different brands of cement used in Anambra State, Nigeria are reported in this paper. Samples of the selected brands of cement were collected and are used in mixing concrete. The study was conducted in Anambra State, Nigeria for 10 months.

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ASSESSMENT OF CEMENT DUST EMISSION ON SOME PHYSICAL AND CHEMICAL PROPERTIES OF SOILS FOR AGRICULTURE IN GBOKO, BENUE STATE, NIGERIA AJON, A.T.1 2 and CHAGBE, K. 1Department of Crop Production Technology, Akperan Orshi College of Agriculture, Yandev, P.M.B. 181, Gboko, Benue State, Nigeria

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The cement production rate of the world was estimated at 1.2 billion tons/year as at 2011, which was expected to grow to about 3.5 billion tons/year by 2015 [17]. In cement industries, continuous attempts are being made to reduce the cost of production of Portland cement, to reduce the consumption of raw

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contribute greatly in providing the balance between supply and demand for the production of composite panels like particleboard and fibreboard. This paper provides information on the physical, mechanical, thermal and electrical properties of cement-bonded particleboards produced from industrial and agricultural wastes.

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Oct 01, 2015· Electric arc furnace (EAF) slag is a by-product of steel production in electric arc furnaces. Several studies have tried to demonstrate its suitability in civil engineering application, such as in bituminous mixtures and cement-based materials, due to its …

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Compressive strength at 28 days showed that Dangote 3X cement produced 25.27N/mm2, Ibeto cement 38.89 N/mm2, Purechem cement 24.58 N/mm2, Unichem cement 21.16 N/mm2 and Elephant cement 27.9 N/mm2 ...

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A. Physical Properties of Cement. 1. Fineness. It is the biggest factor for the undeterrable strength of cement. Higher fineness leads to higher strength. Higher fineness denotes that there is more area for cement water reaction resulting increase in strength.

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