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Showing 1 to 20 of 33 for “"Ordinary portland cement (OPC)"”.

  1. Investigating mechanical properties of ordinary portland cement. Investigating improvements to the mechanical properties of Ordinary Portland Cement (OPC) bodies by utilizing the phase transformation properties of a ceramic (Zirconia).

    Almadi, AlaaUniversity of Bradford2015

    … tetragonal zirconia on the properties of Ordinary Portland Cement were observed during which the effect of crystallite size pH on the preparation solution, precursor salt, and the presence of co-precipitates, Fe(OH)3, SnO2 and SiO2 on the crystallization temperature, enthalpy and crystal …

    bradford Repository record

  2. Utilizing of Magnesium Oxysulfate Binders for Additive Construction Applications

    Al-masaeid, Hatem Hashem2020

    … Oxysulfate (MOS) binder as an alternative to the ordinary Portland cement (OPC) to be utilized in terrestrial and extraterrestrial additive construction (AC) fields. MOS paste and mortar are characterized physically, chemically, and mechanically. The characterization results conducted in this …

    mississippi Repository record

  3. Analysis and reproduction of geopolymer concrete

    Lo, Xin Yin.Massachusetts Institute of Technology2020

    … and more environmentally friendly alternative to ordinary Portland cement (OPC) concrete. Based on Joseph Davidovits' recipe for geopolymer concrete, we varied the ratios of the materials in an attempt to produce the ideal formula for the concrete that withstands maximum compressive strength. …

    mit Repository record

  4. Aqueous reactivity of glassy industrial byproducts in alternative cementitious systems

    Uvegi, Hugo Jake.Massachusetts Institute of Technology2020

    … to curb the carbon footprint associated with ordinary Portland cement (OPC). CO₂ emissions inherent to source-material processing (i.e., firing of limestone at 1450 °C) and annual OPC production volumes of 4.1 billion metric tons cause an estimated 5-11% of global annual greenhouse gas (GHG) …

    mit Repository record

  5. Nano-ChemoMechanical assessment of Rice Husk Ash cement by wavelength dispersive spectroscopy and nanoindentation

    Abuhaikal, Muhannad (Muhannad A. R.)Massachusetts Institute of Technology2011

    Cement global production stands at 3 Giga tons making concrete the most consumed structural mateial worldwide. This massively produced material comes with a heavy environmental footprint rendering the cement industry contributing about 5% to global CO₂ emission. Rice Husk Ash (RHA) among many other …

    mit Repository record

  6. CORROSION RESISTANCE PERFORMANCE INVESTIGATION OF MILD STEEL BAR COATED WITH MAGNESIUM PHOSPHATE CEMENT PASTE

    Zhang, FanMissouri University of Science and Technology

    … study, the anti-corrosion mechanism of reinforcement embedded in magnesium potassium phosphate cement (MKPC) is explored. In addition, one type of additives, metakaolin, and one type of retarder, boric acid, are employed in MKPC to modify its properties in order to further investigate corrosion …

    must-thes Repository record

  7. Sustainable cementitious materials for building and sorption applications

    Mondal, Sukanta KumarMissouri University of Science and Technology

    <p>"Ordinary Portland Cement (OPC) is the most widely used cement material, but it contributes over 8% of the global CO<sub>2</sub> emission and the process is energy intensive. Moreover, OPC faces durability challenges, particularly in aggressive environments. Hence, there is rapidly increasing …

    must-thes Repository record

  8. Effect of blast-furnace slag as cement replacement on hydration, microstructure, strength and durability of concrete

    Gruyaert, ElkeGhent University. Faculty of Engineering and Architecture2011

    … during the last years. Also in the concrete and cement industry, attempts are made to minimize the environmental impact. One way to implement this thought, is the use of industrial by-products as cement replacing material. The 'waste' products are upgraded in high-value applications and the need …

    ghent Repository record

  9. The reuse of the algerian petroleum sludge as alternative raw material for cement production

    Benlmoudi, AliUniversiti Tun Hussein Onn Malaysia2019

    … materials (AFR) to produce different types of cement like Ordinary Portland Cement (OPC), Portland Pozzolana Cement (PPC), Low Heat Cement and others. This incorporation is to avoid harmful impacts of AFR and to produce alternative sustainable cement. In this study, petroleum sludge (PS) waste, …

    uthm Repository record

  10. The Evaluation of Permeable Cementitious Media for Nutrient Removal

    Ramsey, Andrew J.University of Missouri -- Kansas City2017

    … utilized to fundamentally characterize permeable cementitious media for the removal of nitrate-nitrogen and orthophosphate-phosphorus. Batch reactor tests were used to determine nitrate and orthophosphate removal and retention for five permeable reactive concrete mixtures. Additionally, fixed-bed …

    umkc Repository record

  11. Textile fine grined mortar containing palm oil fuel ash as a partial cement replacement for flexural strengthening on reinforced concrete beams

    Wan Yusof, Wan YuslindaUniversiti Tun Hussein Onn Malaysia2018

    … mm x 160 mm consist of fine sand less than 1 mm, ordinary Portland cement (OPC) and POFA as a partial OPC replacement. Flexural and compressive test was conducted to identify the optimum FGM-POFA. After that, the strengthening on concrete prisms derived from combination of optimum FGM-POFA and …

    uthm Repository record

  12. The use of Lethabo field 2 PFA in pavement quality concrete

    Gordon, DouglasDepartment of Civil Engineering1989

    … coarse aggregate was 13 mm and flaky in shape. Ordinary Portland cement (OPC) was obtained from the De Hoek cement factory. The investigation was carried out in two parts. First was the development of a wide range of mixes, varying 28 day design strength (10, 20, 30, 40, 50 MPa), percentage of …

    cape-town Repository record

  13. AN EXPERIMENTAL INVESTIGATION INTO THE EFFICIENCY OF FILTER MATERIALS FOR PHOSPHATE REMOVAL FROM WASTEWATER

    Alzeyadi, ATKLiverpool John Moores University2017

    … which significantly influences the extraordinary growth of algae. Consequently, this leads to eutrophication of aquatic life. Eutrophication of water bodies due to phosphorus coming from wastewater is a serious problem. Therefore, additional work on many wastewater treatment plants is …

    liverpool-jm Repository record

  14. Leaching behaviors of heavy metals on petroleum sludge waste treatment by using solidification/stabilization (s/s) method with palm oil fuel ash as partial cement replacement

    Murshid, NoorafizahUniversiti Tun Hussein Onn Malaysia2018

    … of the pollutants within matrices using the cement. Tremendous research has been carried out using the ash from different sources in the S/S method as environmentally-friendly solutions. It replaces cement with a high pozzolonic characteristics binder that could encapsulate the pollutants …

    uthm Repository record

  15. Development of an eco-friendly composite material for engineering applications

    Aly, MarwaDublin City University2012

    … assess the performance of flax fibre/waste glass cement composites. Flax fibres are used to reinforce two systems. The first system contains Ordinary Portland Cement (OPC) only as a binder while in the second system a part of OPC is replaced by finely ground waste glass powder. The fibre …

    dcu Repository record

  16. Relationship between decomposition level and induced solidification of peat based on laboratory investigation

    Abd Rahman, JunitaUniversiti Tun Hussein Onn Malaysia2015

    … materials in peat can be filled and bound using ordinary portland cement (OPC) and coal ash (fly ash, FA and bottom ash, BA). Different decomposition levels of peat require different amounts of filler and binder to achieve the optimum strength. The peats are categorized as fabric for the less …

    uthm Repository record

  17. Strength prediction and durability performance of concrete containing coal bottom ash as supplementary cementitious material under aggressive environment

    Ali, SajjadUniversiti Tun Hussein Onn Malaysia2019

    … structures. However, concrete built with Ordinary Portland Cement (OPC), when exposed to the aggressive environment tends to deteriorate much faster than their projected service life. Therefore, Supplementary Cementitious Material (SCM) need to be introduced to improve the strength and …

    uthm Repository record

  18. Understanding effects of pre-soaked lightweight aggregate on volume stability of mortar and concrete mixtures

    Ardeshirilajimi, ArdavanUniversity of Illinois at Urbana-Champaign2019

    … internally cured mixture using expansive cement. The expansive nature of Calcium Sulfoaluminate (CSA)–based cements can be used to enhance the resistance against shrinkage cracking by inducing compressive stress in concrete. It is shown that combining CSA with internal curing is mutually …

    uiuc Repository record

  19. Fundamental Understanding of NOx Sequestration Capacity And Pathways in Nano-TiO2 Engineered Cementitious Materials

    Jin, QingxuGeorgia Institute of Technology2019

    … of titania (TiO2) nanoparticles into cementitious materials. Air purification by TiO2-based cementitious materials occurs by photocatalysts that capture nitrogen oxide species (NOx) from the atmosphere, then oxidizing them into nitrite and nitrate species. Because nitrite- and …

    gatech Repository record

  20. Chloride binding and desorption mechanism in blended cement containing supplementary cementitious materials exposed to de-icing brine solutions

    Teymouri Moogooee, Mohammad, author, Atadero, Rebecca, advisor, Fantz, Todd, advisor, Jia, Gaofeng, committee member, Bailey, Travis, committee memberColorado State University. Libraries2024

    … chloride desorption mechanisms in different cementitious systems exposed to de-icing brines, and (3) analyze pH and compositional changes in blended pastes under chloride contamination and carbonation. First, factors impacting chloride binding measurements were identified, such as sample form …

    colostate Repository record

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