• Indian Standard ORDINARY PORTLAND CEMENT, 33

    41 Ordinary Portland cement, 33 grade shall be manufactured by intimately mixing together calcareous and argillaceous and/or other silica, alumina or iron oxide bearing materials, burning them at a clinkering temperature and grinding the resultant clinker so as to produce a cement capable of complying with this standard

  • Compressive Strength Evaluation of Ordinary Portland

    However, strength characteristics of cement are necessary conditions to meet the required strength of a structure Therefore, it is necessary to develop cement substitutes and economic additives In this study, we proposed an ecofriendly blend ratio by comparing the compressive strength of Ordinary Portland Cement (OPC) mortar and two variations

  • Alkaline Activity of Portland Cement with Additives of

    the cement’s alkaline activity and its additives We previously used a similar definition only for glass powders [35,36] 31 Alkaline Activity of Materials Used in Cement Compositions The alkaline activity was determined for ordinary Portland cement and additives: container glasses, borosilicate glasses, silica fume

  • Author: Wiktor Szewczenko, Galyna Kotsay
  • ORDINARY PORTLAND CEMENT MIXES WITH

    ORDINARY PORTLAND CEMENT MIXES WITH SELECTED ADMIXTURES SUBJECTED TO SULFURIC ACID ATTACK Several 102mm cubes were cast from cement paste, mortar, and concrete mixes containing ordinary portland cement and suspended in a channel containing either a 1 or 3 percent nominal solution of continuously flowing sulfuric acid

  • Effect of FeSO47H2O and SnCl22H2O added as

    ABSTRACT: The paper compared the effect of additives such as FeSO 42H 2 O and SnCl 22H 2 O on reduction of water soluble Cr(VI), in ordinary Portland cement (43 grades) The determination of water soluble Cr(VI) from cement samples was precisely conducted by DPCSpectrophotometer technique

  • Influence of mineral additives on the hydration

    The effect of mineral additives such as fly ash, slags, limestone, and lime sludge on the hydration of ordinary Portland cement (OPC) has been studied The samples of OPC with 10 wt% mineral additives were examined separately at 28 and 90 days of hydration by Xray diffraction and differential thermal analysis

  • Cited by: 105
  • Acceleration and Retardation of Portland Cement

    THE SETTING and hardening of portland cement can be influenced by chemical additives Several kinds of retarders and accelerators are known A special committee of the American Concrete Institute summarized the effect of additives upon the properties of concrete (1) The most widely used accelerator is calcium chloride, which almost

  • TASLUJA | Lafarge Cement, concrete and aggregates

    Ordinary Portland Cement: According to EN 1971:2011 CEM I 425R According to Iraqis Standard No: 5/1984 type I Properties When high initial strength development is required High performance and wide compatibility with chemical and; cement additives Moderate sulfate resistance MSRC High durability concrete The preferred choice for

  • 预计阅读时间:2 分钟
  • Effects of Different Lithium Admixtures on Ordinary

    Lithiumbased chemicals are known to their signal effect on restraining alkalisilica reaction but uncertain influence on workability and mechanical property in the concrete The aim of this research is to analyze the effects of three lithium additiveslithium nitrate (LiNO3), lithium hydroxide (LiOH) and lithium carbonate (Li2CO3) at various dosages, with an extensive comparison on fluidities

  • Cited by: 2
  • Feasibility of efficient RS Portland cement from an

    The company "La Société les Ciments de Bizerte" (SCB), to face against the competition in national and international markets, finds in the production of SR Portland cement a solution in order to diversify its range of production, especially that its selling price is higher than for ordinary Portland

  • Stabilisation of Weathered Marls using Lime or Cement

    Quicklime and Ordinary Portland Cement (OPC) have been used as additives at the proportion of 2%, 4% and 8% to the weathered marls (base soil) to form mixed samples The base soil and the additives were mixed by hand in a container to form homogenised mixed samples prior to testing Mixed samples for

  • Cement modification of tropical black clay using iron

    Cement: The ordinary Portland cement (OPC) used in the study was sourced from the open market Cement was added to black cotton soil in stepped increments of 1%, 2%, 3% and 4% by dry weight of soil Cement was added to black cotton soil in stepped increments of 1%, 2%, 3% and 4% by dry weight of soil

  • Water repellent cement based materials by

    Les façades des nouveaux bâtiments et des bâtiments existants sont altérées par la pénétration de l'eau and two Portland cements (Ordinary and White Portland Cement CEM I 42,5N) were chosen and studied the durability of waterrepellent additives and of the admixtured cement was studied in order to show the relevance of the

  • Effect of mineral admixture type on stability and

    Ordinary Portland Cement (CEM I 425) typically produced in Algeria by Ain El Kebira cement factory with fineness of 3370 cm2/g and a specific gravity of 315 g/cm3 was used this work Three types of minerals admixtures were used: natural pozzolana (PZ) from a volcanic deposit in the western north region of Algeria

  • EFFECT OF ETHYL SILICATE ON THE WATER RESISTANCE

    ordinary Portland cement (OPC), MOC has many superb properties, such as having early strength, high strength, being lightweight, having a low alkalinity, being a wood substitute and a heat insulator [11, 12] These make it a promising material for applications in producing light insulation board, electrical insulating materials and

  • ciment Portland Traduction anglaise – Linguee

    De très nombreux exemples de phrases traduites contenant "ciment Portland" – Dictionnaire anglaisfrançais et moteur de recherche de traductions anglaises menu Traducteur Traduisez des textes avec la meilleure technologie de traduction automatique au monde, développée par les créateurs de Linguee Linguee Portland cement n

  • Effect of Glass Powder on Concrete Sustainability

    nected capillary network compared to that of ordinary Portland cement (OPC) pastes These changes are qualitatively correlated with the reduction in permeability The pozzolanic reaction seems able to develop easily discontinuous pores [4] The incorporation of FFA in concrete can reduce the water need of about 5 to 15% compared to OPC [5]

  • Early age creep and stress relaxation of concrete

    The main objective is to investigate key properties that influence the stress development in concrete at early ages and the effect of using blended cements Mineral additives and amount by weight of total binder used in the blended cements are fly ash (25%), ground granulated blast furnace slag (25%), and silica fume (10%) The properties investigated include tensile creep, elastic modulus

  • prise du ciment en anglais FrançaisAnglais

    Vérifiez les traductions 'prise du ciment' en anglais Cherchez des exemples de traductions prise du ciment dans des phrases, écoutez à la prononciation et apprenez la grammaire

  • The Stabilization with Cement of Weathered and

    The substitution of sulphateresistant cement for ordinary Portland cement in these experiments did not effect much improvement It is concluded that until further knowledge has been obtained about the damage caused by sulphates, soils containing them should not be used for soilcement stabilization

  • Sustainability Portland Cement Association

    The Portland Cement Association (PCA) supports marketbased policies and initiatives that enable the industry’s continued reduction of its carbon footprint in a responsible and sustainable manner As PCA members continue to drive down the carbon intensity of their operations and products, PCA will develop a roadmap by the end of 2021 to

  • EVOLUTION OF CEMENTED PASTE BACKFILL SATURATED

    made of ordinary Portland cement mixed with slag at a ratio of 20:80 respectively The second mixture of binders (CPFA) is made of ordinary Portland cement and fly ash at a ratio of 70:30 Different proportions of binders were used to evaluate the effect of this parameter on the ksat evolution: 1%, 2% (only for the CPSG binder) and 45 %

  • LafargeHolcim's range of highquality specialized

    LafargeHolcim provides the widest range of high quality cements on the market and offers many benefits to retailers, precasters, masons, contractors, and infrastructure specialists: improved worksite productivity with high early strength cements, consistent highly technical oil well cements, enhanced environmental performance with low CO 2 cements, strong and costeffective road binders,

  • ciment Portland Traduction anglaise – Linguee

    De très nombreux exemples de phrases traduites contenant "ciment Portland" – Dictionnaire anglaisfrançais et moteur de recherche de traductions anglaises menu Traducteur Traduisez des textes avec la meilleure technologie de traduction automatique au monde, développée par les créateurs de Linguee Linguee Portland cement n

  • Effect of Glass Powder on Concrete Sustainability

    nected capillary network compared to that of ordinary Portland cement (OPC) pastes These changes are qualitatively correlated with the reduction in permeability The pozzolanic reaction seems able to develop easily discontinuous pores [4] The incorporation of FFA in concrete can reduce the water need of about 5 to 15% compared to OPC [5]

  • SELFHEALING BEHAVIOUR OF CRACKS IN CEMENT

    Mortar specimens were made with ordinary portland cement (OPC) compliant with requirements of CSA A3001 and ASTM C150 Watertocementitious materials ratio (w/cm) of 035 and sandtocementitious materials mass ratio (s/c) of 2 were used Three different mineral additions including high

  • Qatar National Cement Company

    Built on solid foundation Our Company Product Information

  • Process for producing low porosity cement

    The French publication Les Adjuvants Du Ciment edited by Albert Joisel (Soisy, France 1973 published by the author) at page 102 teaches that sodium bicarbonate in ordinary portland cement is a retarder and again at page 132 that sodium bicarbonate may be added to portland cement

  • STUDY OF THE EFFECT OF ALKALIS ON THE SLAG

    Home; Modern Concrete Materials: Binders, Additions and Admixtures; STUDY OF THE EFFECT OF ALKALIS ON THE SLAGCEMENT SYSTEMS

  • best energy saving ball mill made in china Crushing Plant Optimisation Of Effeciency Crusher rock crushing plant in ethiopia vertical ball mill rock phosphate silikat penggilingan machine proses Sand Classifier Sand Classifier Suppliers And Manufacturers Names For Maize Mills In Uganda images of stone crushers erpillar brands homemade rock pulverizer how to build a jaw crusher melacak crusher solusi red gypsum production process crushers batu beton dan digunakan conveyor belt n Mobile Stone Crusher Jabodetabek Pulverizer Manufacturer For Papad bedeschi roller crusher msand machine manufacturers india disposal of construction waste materials stone to sand crusher stone crusher metal machine manufacturer in indonesia 200 tph coal crusher perforated screen galaxy y touch screen vibrando grinding ball milling machines universal crusher machines Cone Crusher Untuk Dijual Congo mineral crushing plant suppliers in derby lead zinc mineral processing equipment for antimony ores in australia Rare Earth Ore Equipments disadvantages of vibrating screen