Results 71 to 80 of about 440,118 (241)
Characteristics of Pozzolan and Composite Portland Cements for Sustainable Concrete's Material
Aceh International Journal of Science and Technology, 2020 To support sustainable materials, the ordinary Portland cement production has been reduced since it left a high carbon footprint during manufacturing.
Ni Nyoman Kencanawati +2 more
doaj +1 more source
Formation and characterization of ceramic coating from alumino silicate mineral powders in the matrix of cement composite on the concrete wall [PDF]
Materials Chemistry and Physics, 2019, 2018 Enhancement of thermal performance of concrete wall is nowadays of great importance in reducing the operational energy demand of buildings. We developed a new kind of inorganic coating material based on \ce{SiO2}-\ce{Al2O3}-rich minerals and Portland cement (PC) powder. The finely pulverized mineral powder with the particle size distribution (PSD) of 0.
arxiv
Properties of concrete incorporating locally produced Portland limestone cement
Ain Shams Engineering Journal, 2018 Blended cements are increasingly being used in concrete to reduce the amount of clinker in the cement, thus achieving both economic and environmental gains. The use of limestone as a component of Portland cement is now common practice worldwide. Reducing
Fatma Shaker +2 more
doaj
Influence of limestone filler and of the size of the aggregates on DEF [PDF]
arXiv, 2016 This experimental study aims to determine the effect of limestone filler on concrete expansion due to delayed ettringite formation (DEF). Different mortars made with different sizes and percentages of limestone filler and Portland cement CEM I 52.5N are conserved in water. The expansion of the specimens is measured.
arxiv
Effects of Supplemetary Cementitious Materials on the Air Permeability of Concrete
Journal of Materials and Engineering Structures, 2017 In order to support the use of cement combination concrete in construction, this paper investigated the resistance of Portland cement and some binary and ternary cement concretes containing fly ash, silica fume and metakaolin to air permeability at equal
Samuel Olufemi Folagbade
doaj
Materiales de Construccion, 2014 Special foundations, most prominently micropiles and soil anchors, are frequently used in construction today. In Spain, the grout for these special technical applications is generally prepared with portland cement, although the codes and standards in ...
J. M. Ortega +4 more
doaj +1 more source
Adhesion characterisation of Portland cement concrete and alkali-activated binders
Advances in Cement Research, 2018 Alkali-activated binders (AABs) are investigated for their potential use as repair materials of Portland cement concrete (PCC).
Long-yuan Li
semanticscholar +1 more source
Kinetics of the water absorption in slag cement mortars [PDF]
arXiv, 2002 We study the kinetics of absorption of water in portland cement mortars added with 60, 70 and 80% of granulated blast furnace slag (GGBS or Slag) cured in water and at open air and preheating at 50 and 100 C.A mathematical model is presented that allows describing the process not only in early ages where the capillary sorption is predominant but also ...
arxiv
Testing homogeneity in dynamic discrete games in finite samples [PDF]
arXiv, 2020 The literature on dynamic discrete games often assumes that the conditional choice probabilities and the state transition probabilities are homogeneous across markets and over time. We refer to this as the "homogeneity assumption" in dynamic discrete games.
arxiv
Modeling the Early Stage Formation Mechanisms of Calcium Silicate Hydrates and Related Gels [PDF]
arXiv, 2019 Arguably the most ubiquitous construction material in modern civilization, concrete is enabling the development of megacities around the globe together with increasing living standards in developing nations. However, it can be argued that the concrete industry's somewhat empirical and conservative approach to change is hampering innovation and ...
arxiv