Results 21 to 30 of about 48,997 (276)
Nanostructured Polymethylsiloxane/Fumed Silica Blends [PDF]
Materials, 2019 Polymethylsiloxane (PMS) and fumed silica, alone and in a blended form (1:1 w/w), differently pretreated, hydrated, and treated again, were studied using TEM and SEM, nitrogen adsorption–desorption, 1H MAS and 29Si CP/MAS NMR spectroscopy, infrared spectroscopy, and methods of quantum chemistry. Analysis of the effects of adding water (0–0.5 g of water
Iryna Protsak +7 more
openaire +2 more sources
Study Pembuatan Durable Cement dengan Penambahan Pozzolan Silica Fume
Jurnal Teknik Kimia dan Lingkungan, 2018 Selama ini silica fume dikenal sebagai bahan campuran pembuatan beton karena dapat meningkatkan kuat tekan beton, menurunkan permeabilitas beton dan memiliki ketahanan sulfat yang tinggi.
Nanik Hendrawati +2 more
doaj +1 more source
Utilization of Boron Waste Borogypsum with Silica Fume as a Supplementary Cementitious Material in Mortar [PDF]
, 2016 In the current study, borogypsum and borogypsum with silica fume mixtures are added to cement clinker partially. Flexural tensile strength, compressive strength and water absorption tests are performed on mortar samples which contain borogypsum and ...
Ozturk, M. (Murat), Sevim, U. K. (Umur)
core +1 more source
Changes in the chemical composition of silica fume in the concrete composite system
Case Studies in Construction Materials, 2023 The paper demonstrates a spontaneous change in the micro-chemical composition of silica fume micropellets in a composite system of concretes with pozzolans admixtures.
Aleš Frýbort +3 more
doaj +1 more source
Influence of Silica Fume Content on Performance of High - Performance Concrete [PDF]
E3S Web of Conferences, 2021 The influence of different silica fume content on the slump, expansion, compressive strength and flexural strength of high-performance concrete was studied. The results show that with the increase of silica fume content, the slump, expansion, compressive
Zhang Heng-Yuan +2 more
doaj +1 more source
The effect of Persian Gulf tidal zone exposure on durability of mixes containing silica fume and blast furnace slag [PDF]
, 2009 In this research the performance of cement paste and concrete mixes incorporating 7% and 10% of silica fume (SF) as a cement replacement was investigated in three exposure conditions. The results showed that plain type II portland cement performed better
Ganjian, Eshmaiel +1 more
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The Journal of Engineering Research, 2007 The effect of curing conditions and silica fume replacement on the compressive strength and the initial surface absorption of high performance concrete is reported. The silica fume contents were 5, 10, 15 and 20%, by weight of cement.
S.K. Al-Oraimi +3 more
doaj +1 more source
Role of porosity in controlling the mechanical and impact behaviours of cement-based materials [PDF]
, 2008 14 pages, 12 figures.This work deals with the influence of porosity on the tensile, the compressive and the impact behaviours of two fine cementitious mortars—one with silica fume and one without.
Arias Hernández, Ángel +2 more
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Effect of Micro- and Nano-Zeolite/Silica Fume on the Mechanical and Durability Characteristics of Reactive Powder Concrete [PDF]
JES: Journal of Engineering SciencesSilica fume is an essential additive in Reactive Powder Concrete (RPC), as it promotes hydration and densifies the microstructure. In this research, silica fume was partially or fully replaceded with zeolite, introducing a novel 1:1 calcinated zeolite ...
Mohammed Arab +2 more
doaj +1 more source
Guan'gai paishui xuebao, 2023 【Objective】 Soil salinization in the Ningxia Yellow River diversion irrigation area has been found to damage the microstructure and reduce the strength of concrete linings of the channels.
ZHANG Xuanshuo +3 more
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