Ordinary portland cement is the most common cement used in general concrete construction when there is no exposure to sulphates in the soil or groundwater tiger cement limited is one of the best maintained companies for exporting ordinary portland cement from pakistan and is managed by qualified and expert cement field specialists. Physical and chemical properties of ordinary portland cement opc of different grades. Note if a thick walled beaker is used that is too heavy for the balance, the cement can be weighed on waxed paper or a small weighing boat and transferred. Joseph aspdin first made portland cement in his kitchen stove in england in the 19th century. Ordinary portland cement opc of 53 grade obtained from single source is to be used in this investigation. Ordinary portland cement is one of the most widely used type of cement. But for special purposes other qualities of cement such as low heat cement, rapid hardening cement, high alumina cement, white cement, blast furnace slag cement, sulphate resisting cement, etc. Ordinary portland cement opc is the most widely used cement in the world for producing concrete, mortar, stucco, and nonspecialty grouts. The ordinary ordinary portland cement opc supplied. Rising costs of the energy required for its manufacture and the increasing interest in understanding the mechanisms of concrete deterioration, as well as the importance of optimising the use of portland cement in high quality concrete, have continued to sustain interest in this important material. Study on the physical and mechanical property of ordinary. Lime 63% silica 22% alumina 06% iron oxide 03% gypsum 01 to 04% suchismita sahu, asst. However, for use under specific conditions a variety of ordinary portland cement and its composition are available these days. Ordinary normal portland cement is one of the most widely used type of portland cement.
A study has been conducted to investigate the mechanical properties of cementmixed gravel using the unconfined compression test and the tensile test. In india, portland cement was first manufactured in 1904 near madras, by the south india industrial ltd. The name portland cement was given by joseph aspdin in 1824 due to its similarity in. Effect of nanoclay on mechanical properties and microstructure of ordinary portland. The various types of portland cement used in the construction industry are. The chemical composition is traditionally written in an oxide notation used in ceramic chemistry. Cement, commonly used for normal construction work, is known as ordinary portland cement. The microstructure of modified ordinary portland cement opc paste has been investigated by using field emission scanning electron microscopy fesem and xray diffractometry xrd. Ordinary portland cement with fly ash was employed as the cementation agent for preparing cemented samples.
Of the ingredients hexavalent chromium cr vi is classified as a carcinogen by nohsc. The initial setting time of cement paste was longest at 0. Compressive strength compressive strength of ce ment is tested b y 50 mm mortar cubes made by using standard san d and cured in a. Ordinary portland cement standards and specifications opc. Ordinary portland cement tests, properties, manufacture. A portland cement containing a high content of alite c 3 s to give rapid hardening and setting properties. Portland limestone cement part i preparation of cements 38 cement are required when making cement nomenclature.
The effect of nanoparticles of ordinary portland cement opc. Pdf effects of cement particle size distribution on. High early strength portland cement is particularly suitable for works where rapid. Comparism of the compressive strength of concrete made with. Ordinary portland cement suitable to be used in general concrete construction when special properties are not required. Many engineers usually have little information on the chemical compositions of cement in making decisions for the choice of commercially available portland cement in ghana. In ordinary portland cement, approximately threefourths of the mixture is some form of calcium silicate. This material is responsible for the cementing process. Dielectric and electrical properties of ordinary portland. Prevent material from entering sewers, drains, ditches or waterways. Lime and silica make up approximately 85% of portland cement.
B international journal of civil and structural engineering volume 2 issue 3 2012 732 ordinary portland cement opc having 28 day compressive strength of 54 mpa was used. Pakistan standard pss 2321983 specification for portland. But for special purposes other qualities of cement such as low heat cement, rapid hardening cement, high alumina cement, white cement, blast furnace slag cement. The most versatile cement product used for a wide range of applications, including general civil engineering and construction works, smaller works and plastering mortar. This work analyzed five different brands of portland cement in ghana, namely, ghacem. The presesnt research is thus aimed at investigating the effect of nanometakaolin nmk on mechanical properties and microstructure of portland cement mortar. Cement portland cement is not classified as a carcinogen by nohsc. Mechanical properties and durability characteristics of highvolume fly ash concrete made with ordinary portland cement and blended portland fly ash cement. This report is an update of life cycle inventory of portland cement manufacture nisbet, marceau, and vangeem 2002. Ordinary portland cement constituents, properties, types. The results indicate that the best level of heat for produce additives from kaolin and bentonite, and illustrate quantity of additives for replace a portion of.
Approximate oxide composition limits of ordinary portland cement oxide per cent content cao 6067 sio2 1725 al2o3 3. The performance of portland cement in concrete or mortar formation is very well influenced by chemical compositions among other factors. Ordinary portland cement opc, rapid hardening portland cement rhpc, sulphate resisting portland cement srpc, low heat portland cement lhpc, blast. Portland limestone cement part i preparation of cements. The cement, which is generally used for preparing concrete, is the ordinary portland cement. Mechanical properties and durability characteristics of highvolume fly ash concrete made with ordinary portland cement and blended portland fly ash cement authors. Ordinary portland cementopc, rapid hardening portland cementrhpc, sulphate resisting portland cementsrpc, low heat portland cementlhpc, blast. Types, properties, constituents, manufacture, uses and advantages of ordinary portland cement is discussed. Normal portland cement is composed of mechanical mixtures of definite chemical compounds having constant chemical and physical properties. Physical and chemical properties of opc of different. The name portland cement was given by joseph aspdin in 1824 due to its.
The 3 primary constituents of the raw materials used in the manufacture of portland cement are. The initial setting time of ordinary cement should not be earlier than 45 min, and final setting time should not be later than 10 h. Cement is used as a binding material in mortar, concrete, etc. It was found that both the dielectric constant and electrical conductivity of the cement paste are sensitive to the watercement ratio, the. Field testing of cement open the bag and take a good look at the cement. The nanomontmorillonite, which has characteristics of high aspect ratio and interaction between polymer chains and dispersed nanolayers, has been widely used in the development of new reinforced nanocomposite polymers to improve their mechanical properties. Properties high early strength portland cement only requires 3 days to show the strength that ordinary portland cement shows in 7 days. Coconut shell husk ash csha was used as admixture for the stabilization in varying percentage at a constant. Study on the physical and mechanical property of ordinary portland cement and fly ash paste shaswata mukherjee, saroj mandal, adhikari. Fe2o3 c4af 58 aluminoferrite tricalcium aluminate 3 cao.
Ordinary portland cement an overview sciencedirect topics. Effects of sugar on physical properties of ordinary portland. Study on the preparation and properties of highporosity. Flash setting with no increase in strength was observed at sugar content of 0. Ordinary portland cement stabilization of engineering soil.
Analysis of chemical composition of portland cement in. For understanding cement composition, one must know the functionality of cement ingredients. Subscribe our youtube channel for latest civil engineering govt job updates,latest news, technology, informationetc we need your support your support is our energy. Ordinary portland cement results from the calcination of limestone and. May 22, 20 also responsible for grey colour of ordinary portland cement. According to portland cement, ordinary portland cement gb1751999, the national standard, the strength grades of ordinary cement can be divided into. In this paper for enhancement of compressive strength of concrete, a simple method has been proposed. B international journal of civil and structural engineering volume 2 issue 3 2012 732 ordinary portland cement opc having 28 day compressive strength of. Characterization of fly ash and it effects on the compressive. There is debate in the medical literature concerning whether there is any risk of lung cancer arising from long term high overexposure to respirable crystalline silica.
Ordinary portland cement opc opc produced by suez cement company was used. The materials that are commonly used are limestone, shells, chalk, shale, clay, slate, silica sand, and iron ore. Material properties of portland cement paste with nano. The effect of nanoparticles of ordinary portland cement. Portland cement can be made by following two different processes a dry one and a wet one. The maximum particle size of portland cement is approximately 100. Oct 01, 2017 ordinary portland cement and its composition. The kaolin and bentonite have been treated by heat for duration of 1 hour, with constant temperature. Effects of sugar on physical properties of ordinary. Portland cement association ordinary portland cement opc.
Ordinary portland cement and its composition building material. Ordinary portland cement and its composition building. Portland cement is one of the most traditional of construction materials. Manufacture, chemical composition, heat of hydration. Ordinary portland cement is the most common cement used in general concrete construction when there is no exposure to sulphates in the soil or groundwater tiger cement limited is one of the best maintained companies for exporting ordinary portland cement from pakistan and is managed by qualified and expert cement field specialists standards and specifications of ordinary portland cement. It was developed from other types of hydraulic lime in england in the early 19th century by joseph aspdin, and usually originates from limestone. The quality of a construction material satisfies stability of structure. Analysis of chemical composition of portland cement in ghana.
The following physical properties should be checked before selecting a portland cement for the civil engineering works. Cement is the mixture of calcareous, siliceous, argillaceous and other substances. It is a fine powder, produced by heating limestone and clay minerals in a kiln to form clinker. Ordinary portland cement standards and specifications. Since a potential pozzolanic reaction may occur between portland cement paste and high amount of silicon dioxide sio2 in nano. Ordinary portland cement is suitable for general purpose buildings, shot concrete, civil engineering works, etc. In this method, sulfur is extracted from portland cement using nitric acid and.
Cement, as a binding material, is a very important building material. Status under sara title iii, sections 311 and 312 portland cement qualifies as a hazardous substance with delayed health effects. May 18, 2007 the nanomontmorillonite, which has characteristics of high aspect ratio and interaction between polymer chains and dispersed nanolayers, has been widely used in the development of new reinforced nanocomposite polymers to improve their mechanical properties. Status under cercla superfund 40 cfr 117 and 302 not listed. Factors affecting the mechanical properties of cement. Testing of cement was carried out according to the egyptian standard ess475612009, where the percent retained on sieve 170 was less than 10%. Modified portland cement suitable to be used in general concrete construction. A study has been conducted to investigate the mechanical properties of cement mixed gravel using the unconfined compression test and the tensile test. Several additives have been innovated for improve quality of compressive strength of concrete. Taylor, 1997, so the minimum sem image size should be around 23562. Properties of 33, 43 and 53 grades of ordinary portland cement such as fineness, setting times, soundness, expansion, compressive strength based on indian, american and eurocodes. Comparism of the compressive strength of concrete made. Also responsible for grey colour of ordinary portland cement.
Therefore, the composition of cement is a matter of great interest to engineers. Properties of 33, 43 and 53 grades of ordinary portland cement. Ordinarynormal portland cement is one of the most widely used type of portland cement. Portland cement consists of the following chemical compounds. Tap water was used for mixing and cement curing for all specimens. Hpfc mixtures were prepared from ordinary portland cement, a setaccelerator sa, polycarboxylatebased superplasticizer pc, foaming agent, and water. Is 2691967 specifies the method of testing and prescribes the limits. The purpose of this update is to incorporate the most recent energy use data from the portland cement associations annual u. Cement in the most general sense of the word, a cement is a binder, a substance that sets and hardens independently, and can bind other materials together. Life cycle inventory of portland cement manufacture.
The dielectric constant and electrical conductivity of ordinary portland cement opc with watercement ratios wc of 0. Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and nonspecialty grout. The colour of the cement should normally be greenish grey. Portland cement is considered a hazardous chemical under this regulation and should be a part of any hazard communication program. By altering the amount of an ingredient during cement. Mechanical properties and durability characteristics of.
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