Results 61 to 70 of about 440,118 (241)
Analyses of microstructural properties of VA/VeoVA copolymer modified cement pastes
Polímeros, 2005 Recently, modern techniques have been applied for analysis of the influence of polymers on microstructural properties of Portland cement, such as Thermogravimetric Analyses (TG), Scanning Electronic Microscopy (SEM), Fourier Transform Infrared ...
Carlos Eduardo M. Gomes +1 more
doaj +1 more source
Development of physics-based compositional parameters for predicting the reactivity of amorphous aluminosilicates in alkaline environments [PDF]
arXiv, 2023 The reactivity of amorphous aluminosilicates in alkaline environments is important to many applications, including blended Portland cements and alkali-activated materials (AAMs). Here, two physics-based compositional parameters are derived to describe the relative reactivity of CaO-Al2O3-SiO2 and CaO-MgO-Al2O3-SiO2 glasses in alkaline environments: (i)
arxiv
E-Journal of Chemistry, 2009 Magnesium oxysulphate cement (MOC, Magnesia / Sorel’s Cement), discovered by Sorel S.T. in 1867 and has versatile cementing characteristics. It is prepared by the reaction of magnesium sulphate with magnesia in aqueous solution.
Ritu Mathur +2 more
doaj +1 more source
Advances in Civil Engineering, 2020 Soft soil is widely distributed in Vietnam, especially in the coastal area. In engineering practice, soft soil cannot be used to build any construction and needs to be improved or treated before building construction.
Son Bui Truong +2 more
doaj +1 more source
Case Studies in Construction Materials, 2018 The waste problem is a problem faced throughout the world. This research aims to save the environment with on the utilization of recycling waste materials that do not contribute much in people's lives over the years.
Muhammad Syarif +3 more
doaj
Ultrafine portland cement performance
Materiales de Construccion, 2018 By mixing several binder materials and additions with different degrees of fineness, the packing density of the final product may be improved. In this work, ultrafine cement and silica fume mixes were studied to optimize the properties of cement-based ...
C. Argiz, E. Reyes, A. Moragues
doaj +1 more source
arXiv, 2011 It is commonly believed that the ancient Romans were the first to create and use concrete. This is not true, as we can easily learn from the Latin literature itself. For sure, Romans were able to prepare high-quality hydraulic cements, comparable with the modern Portland cements.
arxiv
Structural analysis of composite metakaolin-based geopolymer concrete
Revista IBRACON de Estruturas e Materiais, 2018 The study of alternative binders to Portland cement, such as geopolymer cements, offers the chance to develop materials with different properties. With this purpose, this study evaluated experimentally the mechanical behavior of a geopolymer concrete ...
F. PELISSER +6 more
doaj +1 more source
Application and research review of cemented carbide heterogeneous brazing coating additive manufacturing [PDF]
arXiv, 2022 As one of the important methods for surface modification of materials and life extension of key components, cemented carbide brazing coatings are widely used in agricultural machinery, oil drilling, aerospace and other fields, it has also attracted the attention of scholars in the field of surface modification at home and abroad.
arxiv
Research of Frost Resistance of Tuff-Containing Portland Cement [PDF]
E3S Web of ConferencesResults of a study of frost resistance up to 150 cycles of freezing and thawing of Portland cement and pozzolanic Portland cements obtained on the basis of these Portland cement clinkers with various dosages burnt tuffite, gliège , showed that up to 30 ...
Kabulova Lola, Orazimbetova Gulistan
doaj +1 more source