Effects of Intergrinding 12% Limestone with Cement on Properties of Cement and Mortar

Mohammadi, James; South, W

doi:10.3151/jact.14.215

Cited by 10 publications

(2 citation statements)

References 39 publications

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“…Mohammadi and South [3] reported that limestone addition can reduce the bleeding of fresh concrete and increase the viscosity and cohesiveness of fresh concrete. Mohammadi and South [4] also reported that the concrete with various limestone contents up to 12% has a similar drying shrinkage and sulfate expansion resistance with control concrete. Chen and Kwan [5] measured heat generation of concrete with different limestone stone replacement ratios and binder contents.…”

Section: Introductionmentioning

confidence: 90%

Kinetic Hydration Heat Modeling for High-Performance Concrete Containing Limestone Powder

Wang

2017

Advances in Materials Science and Engineering

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Limestone powder is increasingly used in producing high-performance concrete in the modern concrete industry. Limestone powder blended concrete has many advantages, such as increasing the early-age strength, reducing the setting time, improving the workability, and reducing the heat of hydration. This study presents a kinetic model for modeling the hydration heat of limestone blended concrete. First, an improved hydration model is proposed which considers the dilution effect and nucleation effect due to limestone powder addition. A degree of hydration is calculated using this improved hydration model. Second, hydration heat is calculated using the degree of hydration. The effects of water to binder ratio and limestone replacement ratio on hydration heat are clarified. Third, the temperature history and temperature distribution of hardening limestone blended concrete are calculated by combining hydration model with finite element method. The analysis results generally agree with experimental results of highperformance concrete with various mixing proportions.

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Section: Introductionmentioning

confidence: 90%

Kinetic Hydration Heat Modeling for High-Performance Concrete Containing Limestone Powder

Wang

2017

Advances in Materials Science and Engineering

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“…Pliya et al [ 26 ] suggested that 5% stone powder content increased the compressive strength of mortar, but the flexural strength of mortar decreased when the content exceeded 10%. Mohammadi et al [ 27 ] suggested that when the limestone powder content increased from 7.5% to 12%, the physical properties of mortar remained similar. Khaleel et al [ 28 ] showed that the rheological and mechanical properties of fresh mortar were improved when the stone powder content was 10%.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Properties of Mortar and Concrete Made with Tunnel Slag Machine-Made Sand

Tang

W²,

Liu

et al. 2022

Materials

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Machine-made sand is gradually replacing natural sand to achieve sustainable development. Experimental studies and gray-correlation analysis were used to study the properties of tunnel slag machine-made mortar and concrete. The properties of machine-made mortar with different stone powder content were analyzed through experiments. By analyzing the performance of machine-made sand concrete with equal amounts of cement replaced by stone powder, the optimum replacement ratio is obtained. Gray-correlation analysis was used to compare the degree of influence of fineness modulus and stone powder content on the performance of concrete. Scanning electron microscopy (SEM) and X-ray diffractometry (XRD) were used to analyze the microstructure of tunnel slag sand concrete. The test results showed that the flexural and compressive strengths of the machine-made sand concrete were greater than the standard sand with the same stone powder content. The 28-day flexural and compressive strengths had a maximum difference of more than 30%. The best stone powder content of the machine-made mortar is in the range of 5% to 8%. When the replacement cement content of stone powder is about 6%, the mechanical and working properties of machine-made sand concrete achieve the optimal state. The lower the stone powder content, the closer the mechanical and working properties of machine-made sand concrete and river sand concrete. The correlation between the performance of machine-made sand concrete and fineness modulus is the largest. When the stone powder content is low, it has almost no effect on the compressive strength of concrete. The results point out the direction for the quality control of tunnel slag machine-made sand concrete.

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Synthesis of waste limestone powder–based alkali-activated binder: experimental, optimization modeling, and eco-efficiency assessment

Ibrahim

Ali

Joseph

et al. 2022

Environ Sci Pollut Res

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Effects of Intergrinding 12% Limestone with Cement on Properties of Cement and Mortar

Cited by 10 publications

References 39 publications

Kinetic Hydration Heat Modeling for High-Performance Concrete Containing Limestone Powder

Kinetic Hydration Heat Modeling for High-Performance Concrete Containing Limestone Powder

Experimental Study on the Properties of Mortar and Concrete Made with Tunnel Slag Machine-Made Sand

Synthesis of waste limestone powder–based alkali-activated binder: experimental, optimization modeling, and eco-efficiency assessment

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