Results 61 to 70 of about 49,645 (208)
Effects of sodium ions on synthesized alkali silica reaction gels [PDF]
, 2015 The alkali-silica reaction (ASR), leading to serious structural degradation, is the chemical reaction between reactive silica presenting in aggregates and hydroxyl ions from cement paste or pore solution. Although the chemical mechanism of ASR attack has
De Schutter, Geert +3 more
core +1 more source
Effect of Steel Fiber and Silica Fume on Hardened Concrete Compressive and Flexural strength
Journal of Engineering and Sustainable Development, 2015 Fiber reinforced concrete (FRC) may be defined as a composite materials made with Portland cement, aggregate, and incorporating discrete discontinuous fibers and silica fume.
Lina Abudel Salam
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
Geotechnical Properties of Expansive Soil Treated With Silica Fume [PDF]
Engineering and Technology Journal, 2013 Problematic soils such as expansive soil are those clay soils which exhibited significant volume changes as results of soil moisture variation, when a dry mass of clay is allowed to absorb water, the effective size of particles increases and therefore ...
Zeena Waleed S. Abbawi
doaj +1 more source
Doboku Gakkai Ronbunshu, 1995 コンクリートにシリカフュームを用いることにより, コンクリートの高強度化などの効果が期待されている. しかしながら, シリカフュームそのものの品質特性や, コンクリートの諸特性に影響を及ぼすシリカフュームの品質についても未だに不明確であり, シリカフュームに関する規格, 基準も整備されていないのが現状である. このような背景から, 本研究ではまず, 我が国で入手可能な13銘柄のシリカフュームを対象とし, その品質特性を明らかにし, 次にコンクリートの諸特性に影響を及ぼすシリカフュームの品質指標を明らかにすることを試み, これを通じてシリカフュームの品質とその評価に関する提案を行ったものである.
Shigeyoshi Nagataki +3 more
openaire +2 more sources
Durability performance of Green Concrete Incorporating Various Wastes: A Review [PDF]
, 2019 The present manuscript stands for the review on the topic of durability attribute of concretes developed by means of green conception with incorporation of a variety of solid industrial waste slag from Ground Granulated Blast Furnace, silica fume, rice ...
LUHAR, Ismail, LUHAR, Salmabanu
core
Accelerated and natural carbonation of concrete with high volumes of fly ash : chemical, mineralogical and microstructural effects [PDF]
, 2019 Today, a rather poor carbonation resistance is being reported for high-volume fly ash (HVFA) binder systems. This conclusion is usually drawn from accelerated carbonation experiments conducted at CO2 levels that highly exceed the natural atmospheric CO2 ...
De Belie, Nele +2 more
core +1 more source
Journal of Applied Sciences, 2008 In the present investigation, the effect of base oil viscosity and fume silica concentratiou on properties of formulated greases has been investigated. Mixture of greases is formulated using polymethylsiloxane (with viscosity 500, 1000 and 2000 cS at 25°C) as base oil and thickened with 5-13% wt. fume silica.
Hayder A. Abul Ba +2 more
openaire +3 more sources
Effect of silica fume additions on the hydration behaviour of calcium aluminates [PDF]
, 1997 In the recent refractory castables technology, the calcium aluminate cement is being replaced in increasing proportion by very fine matrix components, such as silica fume and colloidal alumina.
Fumo, Daniel A., Segadães, Ana M.
core +1 more source
Influence of tank bottom surface on growth and welfare of Senegalese sole (Solea senegalensis) [PDF]
, 2017 Tank bottom surface is an important question to take into account in flatfish aquaculture considering the intimate contact that the fish have with it.
Almansa, C. +3 more
core +2 more sources