Influence of Diatomite on the properties of mortar and concrete: A Review

Sharma, Neha; Sharma, Prashant; Verma, Sujit kr

doi:10.1088/1757-899x/1116/1/012174

Cited by 28 publications

(7 citation statements)

References 16 publications

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“…The primary objective was to get a deeper comprehension of the process by which this material operates in mortar. 23,38 To create insoluble calcium stearate and measure the particle size, we combined 5 g of stearic acid emulsion with 2.5 g of calcium chloride solution (10 wt%) and diluted it with 26.5 g of water. The particle size distribution graph produces three zones, large, medium, and small, as seen in Figure 14.…”

Section: The Mechanism Of Stearic Acid Emulsions Modified Mortarmentioning

confidence: 99%

“…35,37 Lauric acid is a type of "reactive emulsifier," because it could undergo a chelation reaction with calcium ions in cement due to its carboxylic acid groups. [38][39][40] The use of reactive emulsifier lauric acid for the preparation of low-viscosity stearic acid emulsion not only solves the problem of inadequate dispersion of stearic acid powder in cement, but also solves the problem of water absorption of residual emulsifier in mortar. To create stearic acid emulsion, we used lauric acid (LA) as an emulsifier to melt blend with stearic acid (SA) under the neutralization of ammonia.…”

Section: Introductionmentioning

confidence: 99%

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A ultra‐low viscosity stearic acid emulsion prepared by lauric acid as waterproof agent for cement mortar

Huang,

Wu,

Wang

et al. 2023

J of Applied Polymer Sci

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Safe building structures cannot be achieved without reliable waterproofing engineering. To address the susceptibility of concrete materials to water leakage, a low‐viscosity stearic acid emulsion has been developed as a waterproofing agent for mortar. By introducing lauric acid, the formation of stearic acid crystals in water could be effectively prevented, resulting in a stearic acid emulsion with a viscosity of only 24 mPa·s. It is found that the best overall performance was achieved when the ratio (R) of lauric acid to stearic acid was 2/3. This emulsion has the least effect on mortar fluidity and setting time. The as‐prepared modified mortar possessed the highest compressive strength (127% of the blank) and the lowest water absorption at 48 h (37% of the blank). X‐ray diffraction (XRD), Fourier‐transform infrared spectroscopy (FTIR), energy‐dispersive x‐ray spectroscopy (EDS), scanning electron microscopy (SEM), dynamic light scattering (DLS) particle size analysis, and water contact angle measurements were used to investigate the mechanism of stearic acid emulsion's modification. It is determined that the stearic acid emulsions successfully modified the internal and external hydrophobicity of the mortar by chemical action with calcium hydroxide.

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Section: The Mechanism Of Stearic Acid Emulsions Modified Mortarmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A ultra‐low viscosity stearic acid emulsion prepared by lauric acid as waterproof agent for cement mortar

Huang,

Wu,

Wang

et al. 2023

J of Applied Polymer Sci

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“…Diatomaceous earth and other minerals containing amorphous SiO 2 are practical and appealing materials for the creation of porous geopolymer materials and thus offer the construction industry a sustainable future. [ 25 , 26 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

A Review on the Incorporation of Diatomaceous Earth as a Geopolymer-Based Concrete Building Resource

et al. 2022

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The development of geopolymer building composites at a lower cost with a smaller carbon footprint may lessen the growing concerns about global warming brought on by emissions of a critical greenhouse gas (CO2) paired with the high production costs in the cement sector. Diatomaceous earth, commonly used as an admixture or partial replacement of cement owing to its most effective pozzolanic properties, has been investigated as a precursor in geopolymer concrete development. Several studies have been examined to develop a greater understanding of its characterization, inclusion status, and impacts on the performance aspects of concrete. The literature review showed that using diatomaceous earth is one of the effective ways to create sustainable, insulating, lightweight building materials while minimizing the harmful economic and environmental effects of industrial solid wastes. However, since most studies have focused on its integration as a partial cement substitute or a replacement for fine aggregate, further research on diatomaceous earth-based clinker-free concrete is required. A lack of research on geopolymer concrete’s reinforcement with either natural or synthetic fibers, or a combination of the two, was also discovered. This review also showed that there has been remarkably little effort made towards theoretical property correlation modeling for predicting concrete performance. It is anticipated that the detailed overview presented herein will guide potential researchers in defining their future paths in the study area.

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“…Diatomite is formed from the remains of microscopic single-celled algae (diatoms) found in marine sediments. Dead fossilized diatoms can be found at the bottom of oceans, sea beds, and lakes [44]. Diatomaceous accumulations can be found in many countries around the world, including the United States (particularly in California), the Commonwealth of Independent States (USSR), Canada, South Korea, Romania, Belgium, Japan, Brazil, Denmark, Germany, the Isle of Man, South Africa, Mediterranean countries of Algeria, Italy, France, Turkey, Crete, Cyprus, Spain, and Morocco [45].…”

Section: Introductionmentioning

confidence: 99%

The engineering performance of eco-friendly concretes containing diatomite fly ash and ground granulated blast furnace slag

Aruntaş

Yıldız²,

Kaplan

2022

Acta Polytech

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Approximately 10 % of CO2 is emitted from an ordinary Portland cement production. In cement and concrete production, CO2 emissions can be greatly reduced by using Supplementary Cementitious Materials (SCMs). In addition, the microstructure and durability properties of concrete are greatly improved when silica-rich SCMs are used. In this study, Eco-Friendly concrete design was carried out using three different SCMs. Diatomite, ground granulated blast furnace (GGBFS) and fly ash (FA) were used as the SCM in the concrete mixtures. SCMs were used instead of cement at ratios of 5, 10, 15, and 20 wt %. When diatomite was used at the rate of 20 %, the standard consistency water increased 1.7 times as compared to the reference mixture. With the increase in the replacement ratio, the final setting times of the pastes increased. The high active SiO2 content of diatomite shortened the initial setting time and increased the compressive strength. The use of 5 % diatomite reduced the slump value by 57 % as compared to the reference mixture. The slump and Ve-Be tests of GGBFS and FA mixtures showed similar properties to the reference mixture. The 28-day compressive strength of concrete varied between 29.2–34.6 MPa. With the increase in the curing time of the concrete mixtures, up to 50 % improvements were observed in the compressive strength. Especially on the 180th day, a compressive strength of 44.1 MPa was obtained in concrete mixtures with a 10 % replacement ratio. While using the FA in the mixtures improved the abrasion properties, the opposite result was observed in the case of the GGBFS. It was observed that the mixtures with 5 % FA showed the closest properties to the reference mixture. As a result, it was determined that SCMs with different properties could be used in environmentally friendly concrete mixtures by up to a 20 % replacement ratio.

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Influence of Diatomite on the properties of mortar and concrete: A Review

Cited by 28 publications

References 16 publications

A ultra‐low viscosity stearic acid emulsion prepared by lauric acid as waterproof agent for cement mortar

A ultra‐low viscosity stearic acid emulsion prepared by lauric acid as waterproof agent for cement mortar

A Review on the Incorporation of Diatomaceous Earth as a Geopolymer-Based Concrete Building Resource

The engineering performance of eco-friendly concretes containing diatomite fly ash and ground granulated blast furnace slag

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