journal article·2025-09-02

Cement-treated crushed stones: influence of cement type on mixture porosity

Verônica Janaína Melo Barreto Nunes, Fernando Silva Albuquerque

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Abstract

The study analysed the absorption and void content of CTCS mixtures with two cement types (CP II-F 32 and CP IV 32 RS) and binder levels (3% and 5%) to evaluate the impact of cement type on porosity. The results indicated that replacing CP II-F 32 cement with CP IV 32 RS cement leads to mixtures that are less porous, more compact, and with stronger bonds between mortar and aggregate. The macro and microstructure images corroborated the results obtained. Complementary analyses of the mechanical behavior of the mixtures showed that mixtures with CP IV had higher strengths and stiffnesses compared to mixtures with the same CP II cement content, indicating a better performance of mixtures with cement containing a high content of pozzolanic material. Factorial models highlighted a strong correlation between porosity and mechanical properties, demonstrating that reduced absorption and void indices result in higher performance.
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Research context

OpenAlex topics: Concrete and Cement Materials Research · Building materials and conservation · Rock Mechanics and Modeling

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Affiliations

Federal University of Sergipe

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