Beneficial role of nanosilica in cement based materials – A review

https://estudogeral.sib.uc.pt/bitstream/10316/80382/1/1-s2.0-S0261306914001691-main.pdf

The effect of nanosilica addition on flowability, strength and transport properties of ultra high performance concrete

Sol-Gel processing of silica nanoparticles and their applications.

An experimental survey on combined effects of fibers and nanosilica on the mechanical, rheological, and durability properties of self-compacting concrete

The effect of Colloidal Nano-silica on workability, mechanical and durability properties of High Performance Concrete with Copper slag as partial fine aggregate

Effect of colloidal nano-silica on the mechanical and physical behaviour of waste-glass cement mortar

Flax fibers, along with a number of other plant fibers, are rich in cellulose, are relatively cheap, have low density, are highly biodegradable, and are easily renewable with the potential for many composites' reinforcement. However, natural fibers are hydrophilic in nature and covered with waxy substances and pectin, which obstruct the hydroxyl groups from reacting with most binder materials, making it less attractive for reinforcement in polymer composites. Natural fibers are, therefore, usually subjected to alkaline treatment to bleach the fiber surface, swell the cell wall to enable large chemical molecules to penetrate the crystalline region, stop the moisture absorption, and increase the surface roughness. The main goal of this work is to study the effect of the alkaline treatment conditions on the mechanical properties of flax fiber. The effect of treatment parameters such as NaOH concentration, soaking time, and treatment temperature on single fiber tensile strength (TS) and Youn's Modulus (YM) wa...

Optimization of Alkaline Treatment Conditions of Flax Fiber Using Box–Behnken Method

The main concern for natural fibres reinforced cement composites (NFRC) is the durability of the fibres. The alkalinity of the cement matrix is the main causes of the loss of resistance of NFRC. The aim of this work was to determine the effect of partial replacement of Ordinary Portland cement (OPC) by finely ground waste glass powder (WG) and nano clay particles (NC) on the mechanical performance and durability of flax fibre reinforced cement composites (FRC). Tests were designed to study the alkali-silica reaction (ASR), X-ray diffraction analysis (XRD), differential thermal analysis (DTA) and the mechanical performance of the composites. Additionally, the durability of the composites aged under wetting and drying cycles are presented. The results show that incorporation of WG has a positive effect on the mechanical properties and durability of FRC especially when NC is presented. In addition, the DTA results and XRD analysis show a reduction in the calcium hydroxide (CH) content in mortars with both WG and a hybrid combination of WG and NC. This confirms the improvement of mechanical properties and the occurrence of the pozzolanic reaction after 28 days of hydration.

Effect of nano-clay and waste glass powder on the properties of flax fibre reinforced mortar

/pdf/treatment-of-blue-hb-reactive-dyes-in-textile-wastewater-2k6z2xfr.pdf

E. F. Abadir

Papers

Effect of colloidal nano-silica on the mechanical and physical behaviour of waste-glass cement mortar

Optimization of Alkaline Treatment Conditions of Flax Fiber Using Box–Behnken Method

Effect of nano-clay and waste glass powder on the properties of flax fibre reinforced mortar

Treatment of Blue HB Reactive Dyes in Textile Wastewater using Bio-waste based Hydroxyapatite

Novel Evaluation for The Effect of binder percentage on Tungsten-Based Delay Compositions