Use of diatomite as partial replacement for Portland cement in cement mortars

Değirmenci, Nurhayat; Yilmaz, Arın

doi:10.1016/j.conbuildmat.2007.12.008

Cited by 133 publications

(63 citation statements)

References 5 publications

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“…In contrast, the failure strains of sand asphalts were not evidently affected by the loading rate. This was consistent with the results obtained by Wu et al [27] and Cai et al [28].…”

Section: Uniaxial Compression Failure Testsupporting

confidence: 83%

Effects of Diatomite–Limestone Powder Ratio on Mechanical and Anti-Deformation Properties of Sustainable Sand Asphalt Composite

et al. 2018

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Diatomite has gained more and more interest as a new resource, since it has potential as a favorable alternative to mineral filler in the construction of asphalt pavement compared with ordinary limestone powder. In this paper, the mechanical and anti-deformation properties of sand asphalt composites with various proportions of diatomite were investigated by a uniaxial compression failure test, a uniaxial compression repeated creep test, and a low-temperature splitting test in order to determine the optimal replacement content of ordinary limestone powder. Five groups of sand asphalts with various volume ratios of diatomite to limestone (0:1, 0.25:0.75, 0.5:0.5, 0.75:0.25, and 1:0) were determined by the simplex-lattice mixture design (SLD) method. The results reveal that the compression strength, anti-deformation properties, and low-temperature crack resistance of sand asphalts are improved through the use of diatomite. Furthermore, the optimal ratio (0.327:0.673) of limestone to diatomite is determined by the SLD method, according to secant modulus and creep strain results.

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“…In contrast, the failure strains of sand asphalts were not evidently affected by the loading rate. This was consistent with the results obtained by Wu et al [27] and Cai et al [28].…”

Section: Uniaxial Compression Failure Testsupporting

confidence: 83%

Effects of Diatomite–Limestone Powder Ratio on Mechanical and Anti-Deformation Properties of Sustainable Sand Asphalt Composite

et al. 2018

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“…The hydraulic and pozzolanic activity of silica mineral additions depends on its crystalline or amorphous state as well as on its size and particle shape (15). Some authors have shown that the use of diatomite in the production of mortar and concrete does not improve its mechanical properties (14,16).…”

Section: Introductionmentioning

confidence: 99%

“…Diatomite (DT) is a natural material from a sedimentary rock, formed mainly by the deposition of microscopic organisms with a crystalline and amorphous silica shell (14). Diatomite can be used as a pozzolan, directly after milling or after a heat treatment at about 1000 °C followed by grinding.…”

Section: Introductionmentioning

confidence: 99%

Effect of pozzolans with different physical and chemical characteristics on concrete properties

Paiva¹,

Velosa²,

Cachim³

et al. 2016

Mater. construcc.

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ABSTRACT:The durability of concrete structures is an important issue nowadays. Specifically in the case of reinforced concrete bridges or other infrastructures one of the main form of environmental attack is the penetration of chloride ions, which leads to corrosion of concrete steel reinforcement.This study aims to evaluate the effect of the introduction of metakaolin and diatomite, two chemically and physically different pozzolans, on the resistance of concrete to the penetration of chlorides but also the effect on other properties of concrete, namely, its compressive strength and its porosity distribution.The results of this study show that the pozzolans physical and chemical characteristics have a strong influence on the pozzolans behavior and, consequently, on the concrete properties. RESUMEN: Efecto de puzolanas con características físicas y químicas diferentes sobre las propiedades del hormigón.La durabilidad de las estructuras de hormigón es un tema importante hoy en día. En concreto, en el caso de los puentes de hormigón armado u otras infraestructuras, el principal factor de agresión medioambiental es la penetración de iones cloruro, lo que conduce a la corrosion del acero de refuerzo del hormigón. Este estudio tiene como objetivo evaluar el efecto de la introducción de metacaolín y diatomita, dos puzolanas química y físicamente diferentes, sobre la resistencia del hormigón a la penetración de cloruros, y también sobre otras de sus propiedades como la distribución de su porosidad o su resistencia a compresión.Los resultados de este estudio muestran que las características fisicoquímicas de las puzolanas tienen una fuerte influencia en su comportamiento y en consecuencia, en las propiedades del hormigón.

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“…The expansion of the cement mortar prisms immersed in 5 wt. % sodium sulphate solution decreased with increasing diatomite content and generally the sulphate resistance of the mortars was higher than that of the reference mortar [11].…”

Section: Introductionmentioning

confidence: 98%

Natural and Calcined Clayey Diatomite as Cement Replacement Materials: Microstructure and Pore Structure Study

Janotka¹,

Uhlík²

2014

IJRET

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Use of diatomite as partial replacement for Portland cement in cement mortars

Cited by 133 publications

References 5 publications

Effects of Diatomite–Limestone Powder Ratio on Mechanical and Anti-Deformation Properties of Sustainable Sand Asphalt Composite

Effects of Diatomite–Limestone Powder Ratio on Mechanical and Anti-Deformation Properties of Sustainable Sand Asphalt Composite

Effect of pozzolans with different physical and chemical characteristics on concrete properties

Natural and Calcined Clayey Diatomite as Cement Replacement Materials: Microstructure and Pore Structure Study

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