Hydration study of the polymer modified jute fibre reinforced cement paste using analytical techniques

Jo, Byung-Wan; Chakraborty, Sumit; Lee, Yun Sung

doi:10.1016/j.conbuildmat.2015.10.086

Cited by 31 publications

(29 citation statements)

References 15 publications

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“…Typically, the presence of crystal structures of calcium carbonate polymorphs (vaterite, aragonite and calcite) can be made using FTIR. In this manner, the small bands centered at 873 and 1427 cm −1 suggest the presence of aragonite [24]. The mid-IR bands changed in frequency, which are related with silicate reactions after mud-acid interaction [25,26].…”

Section: Characterization Of the Cement Samplesmentioning

confidence: 78%

“…Standard slurries (Slurry-Standard-SW and Slurry-Standard-W) have shown similar TG/DTG curves one another. Typically, there are three main mass losses regarding to the release of evaporation of physically adsorbed water on the surfaces and pores of slurries, as well as to the decomposition of hydrated calcium silicate and ettringite (60-200°C), the decomposition of CH (410-500°C) and the calcination of amorphous materials and calcite (CaCO 3 ), according to equation (4) [24]:…”

Section: Characterization Of the Cement Samplesmentioning

confidence: 99%

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The influence of low amounts on in situ-polymerized bisphenol-diamine net in cement slurries prepared in seawater – structural analysis after long-term contact with in situ-generated mud-acid fracturing fluid

Santos

Ribeiro

et al. 2020

Matéria (Rio J.)

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Inadequate zonal isolation in oil wells can provoke safety and environmental problems. New cement slurries can avoid such problems. In this work, novel cement slurries were prepared in the presence of seawater with in situ-formed epoxy resin–ethylenediamine. The new slurries were tested in relation to their mechanical properties and characterized by FTIR, XRD, TG/DTG, porosimetry by N2 adsorption-desorption and solid-state 29Si and 27Al NMR. Some kinetic features of long-term contact of the slurries with in situ-generated mud-acid were performed to evaluate the performances of the new slurries in routine acidizing procedures in oil well industry. The experimental kinetic data were well fitted to order-variable exponential kinetic model and a factorial design of four variables (24). In these studies, it was possible to evaluate in detail how some important experimental factors act on the quantities of acid that interact with the pastes, as well as to verify how these factors affect the speed with which the mud-acid interacts with the slurries. The results strongly suggest that the interactions occurred at epoxy/ethylenediamine cement slurry/mud-acid interfaces are due to surface reactions with preservation of the chemical structures of the cement slurries, even after long-term contact with mud-acid. The new cement slurry present good features to be used in environmental-friendly procedures in oil well field.

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Section: Characterization Of the Cement Samplesmentioning

confidence: 78%

Section: Characterization Of the Cement Samplesmentioning

confidence: 99%

The influence of low amounts on in situ-polymerized bisphenol-diamine net in cement slurries prepared in seawater – structural analysis after long-term contact with in situ-generated mud-acid fracturing fluid

Santos

Ribeiro

et al. 2020

Matéria (Rio J.)

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“…Ji et al studied the use of a degraded waste PET-modified styreneacrylic emulsion and learned that 2-hydroxyethyl-4-{[(2-(prop-2-enoyloxy)ethoxy]carbonyl}benzoate (HETA) plays a role in the thermal, mechanical, and other properties of the resulting styrene-acrylic film, which was confirmed by the potential application of waste PET as decorative and protective coatings [32]. Jo et al [33] proposed a model to explain the overall properties of polymer-modified jute fiber-reinforced cement slurry. Lu et al [34] found that the hairy surface reduced the adsorption of polymer on the cement surface, leading to a small delay effect on cement hydration.…”

Section: Introductionmentioning

confidence: 98%

Properties of Degraded Waste PET‐Modified Styrene‐Acrylic Emulsions for Cement Slurry Materials

Dou

Zhang

Su-fang

et al. 2019

Advances in Civil Engineering

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The properties of a modified cement slurry based on degraded waste PET-modified styrene-acrylic emulsions are studied. The effects of the modified styrene-acrylic emulsion on water consumption, setting time, retarding effect, water retention, impermeability, and mechanical properties of the cement slurry are comprehensively studied. The results show that the modified styrene-acrylic emulsion has the following impacts on the cement slurry: it significantly reduces the water consumption required to reach a standard consistency, slows down the initial and final setting times, and greatly improves the water retention rate and water reduction rate. When the content of modified styrene-acrylic emulsion is 7.5%, the water reduction rate is 36% and the water retention rate is 97%. The solidified cement slurry with a modified styrene-acrylic emulsion content less than 7.5% has lower permeability and higher flexural strength than a common cement slurry. The compressive strength is reduced but can still reach required values. According to SEM observations, the modified styrene-acrylic emulsion can enhance the bonding strength between the cement particles, reduce the porosity of the structure, and improve the performance of cement-based composites.

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“…In cement mortars with jute, the emulsion of a polymer was found to increase the compressive strength and the modulus of rupture (MOR) or the flexural strength [13]. With the application of a polymer, an interpenetrating network structure between the polymer and cement matrices is created and the sugars leached from the jute fibres are reduced, favouring the hydration of the cement [14]. Tests have been conducted on the strength of alkalised jute fibres [15,16].…”

Section: Introductionmentioning

confidence: 99%

Study of Waste Jute Fibre Panels (Corchorus capsularis L.) Agglomerated with Portland Cement and Starch

Ferrández-García

García-Ortuño

et al. 2020

Polymers

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This paper presents an experimental study on the bond behaviour of cement panels reinforced with plant fibres from the recycling of waste jute bags, using starch as a plasticiser. During processing, different proportions of jute (5 wt %, 10 wt %, 15 wt %, and 20 wt %) were used with respect to the weight of cement, and the mixture was exposed to a pressure of 2.6 MPa and a temperature of 100 °C. The density, swelling thickness, internal bonding, flexural strength, and thermal conductivity were studied. Mechanical tests indicated that the values of the modulus of rupture (MOR) and the modulus of elasticity (MOE) increased over time; thus, the jute particles appeared to be protected by the plasticised starch and no degradation was observed. At 28 days, the particleboard with 5% starch had an MOR of 12.82 MPa and an MOE of 3.43 GPa; these values decreased when the jute proportion was higher. The thermal conductivity varied from 0.068 to 0.085 W·m−1·K−1. The main conclusion is that jute-cement-starch composite panels can be manufactured with physical, mechanical, and thermal properties that meet the European standards for use in the construction of buildings as partitions, interior divisions, and thermal insulators.

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Hydration study of the polymer modified jute fibre reinforced cement paste using analytical techniques

Cited by 31 publications

References 15 publications

The influence of low amounts on in situ-polymerized bisphenol-diamine net in cement slurries prepared in seawater – structural analysis after long-term contact with in situ-generated mud-acid fracturing fluid

The influence of low amounts on in situ-polymerized bisphenol-diamine net in cement slurries prepared in seawater – structural analysis after long-term contact with in situ-generated mud-acid fracturing fluid

Properties of Degraded Waste PET‐Modified Styrene‐Acrylic Emulsions for Cement Slurry Materials

Study of Waste Jute Fibre Panels (Corchorus capsularis L.) Agglomerated with Portland Cement and Starch

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