Properties of sustainable cement mortars containing high volume of raw diatomite
TL;DR: The use of high volume of pozzolanic powders decreases the demand for cement in the construction industry and thus reduces the cost of concrete production and lessens the environmental pollution caused by the CO2 emission from the cement factories as mentioned in this paper.
About: This article is published in Sustainable Materials and Technologies.The article was published on 2018-07-01. It has received 36 citations till now. The article focuses on the topics: Cement & Cementitious.
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TL;DR: In this paper, structural distress in glass fibre-reinforced concrete containing marble and granite dusts exposed to various loadings and aggressive environments was investigated. And the results showed that 1% glass addition to concrete containing 20% marble dust as fine aggregate replacement produced higher strength properties than the control concrete.
55 citations
TL;DR: In this paper, up to 60% of Portland cement was replaced with DE, fly ash (FA), and limestone, for reducing environmental impacts of mortar production, and the workability and compressive strength of mortars with high-volume SCMs were comparable to 100-cement mortar at optimized mix proportions.
46 citations
TL;DR: In this paper, diatomite was used in cement mortar to improve the frost resistance durability, and the cumulative pore volume distribution (CPVD) results had the respective suitable measurement range using MIP and NAM due to the difference of calculation methods.
Abstract: In this study, diatomite was used in cement mortar to improve the frost resistance durability. Experimental results showed that using diatomite instead of a small amount of silica fume (such as the samples in D-33.3%) can effectively enhance the frost resistance of cement mortar. To comprehensively understand the modification mechanism of diatomite, pore structure of cement mortar considering the effect of freeze-thaw cycles was studied by means of mercury intrusion porosimetry (MIP) and nitrogen adsorption-desorption measurement (NAM). Moreover, cumulative pore volume distribution (CPVD) results had the respective suitable measurement range using MIP and NAM due to the difference of calculation methods. Thus, to obtain more accurate results, the modified CPVD was proposed by the combination of MIP and NAM results. Furthermore, several characteristic pore volumes (including gel pores, transition pores, capillary pores and large pores) were determined according to the mentioned modified CPVD. Finally, multifractal analysis was carried out to explore the pore structure evolution mechanism, where the heterogeneity and connectivity of pore structure inside cement mortar containing diatomite subjected to freeze-thaw cycles were investigated based on the results of modified CPVD.
38 citations
TL;DR: In this article, a diatomite-modified wood ceramics were prepared by carbonizing a phenolic resin-corn straw powder composite under vacuum, and the structure and properties of as-prepared materials were characterized by a scanning electron microscope, X-ray diffraction(XRD), Fourier transform infrared spectroscopy(FT-IR), Scanning electron microscope(SEM) and Mercury injection.
29 citations
TL;DR: In this article , the properties of various 2D graphene-based nanomaterials (GBNs) with different dimensions were compared, and the enhancement methods for dispersion of 2D GBNs before mixed with cementitious materials were also comprehensively compared and discussed, while the nano-and micro-scale properties of GBNs with respect to the hydration, phase transformations, microstructures, and pore characteristics were also systematically discussed.
28 citations
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Book•
26 Sep 2005
TL;DR: Concrete: Microstructure, Properties, and Materials as mentioned in this paper provides complete details on the microstructure-property relationship approach to provide scientific explanation for the strength and durability of concrete.
Abstract: Comprehensive, up-to-date coverage of the properties, behavior, and technology of concrete Fully revised to include the latest advances in concrete technology, Concrete: Microstructure, Properties, and Materials provides complete details on the microstructure-property relationship approach to provide scientific explanation for the strength and durability of concrete. This in-depth resource discusses the microstructure and properties of hardened concrete; concrete-making materials and concrete processing; and current developments in concrete technology, mechanics, and nondestructive testing methods. New to this Edition Inclusion of recently built/ongoing construction projects worldwide Information on shrinkage-reducing admixtures Coverage of the latest advances in concrete technology-self-consolidating concrete; nanotechnology of concrete; shotcrete; expansive cement; and concrete for nuclear radiation Details on modeling of ice formation and alkali-aggregate reaction in concrete 1,000 PowerPoint slides and videos that illustrate topics presented in the book
3,730 citations
TL;DR: In this paper, the authors describe the procedures and results of a laboratory investigation of mechanical properties carried out on the concrete specimens containing diatomite and WMP as partial replacement of cement in concrete.
305 citations
TL;DR: In this paper, a simple model is proposed to relate ultrasonic pulse velocity with porosity and permeability, and experimental results are shown and correlations between the measured parameters of the material are discussed.
269 citations
TL;DR: In this paper, the authors present three basic possibilities to increase the sustainability of a structure, i.e., methods to assess and reduce the environmental impact of concrete, means to increase concrete performance, and design concepts which increase the possible lifetime of a concrete structure.
205 citations