ArticleMaterials (Basel, Switzerland)2022
Experimental Investigation on Environmentally Sustainable Cement Composites Based on Wheat Straw and Perlite.
Article in Materials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed.
- Experimental Study on the Physical Properties and Freeze-Thaw Resistance of Rice Straw-Mortar Composites.Materials (Basel, Switzerland) · 2026Article
- Machine learning-based prediction of compressive and flexural strength of wheat straw reinforced sustainable gypsum composites.Scientific reports · 2026Article
- The addition of natural clay and industrial and agricultural waste on the performance of green and sustainable concrete.Scientific reports · 2025Article
- Effect of Plant Fiber on Early Properties of Geopolymer.Molecules (Basel, Switzerland) · 2023Review
- Review
- Recycled Materials in Civil and Environmental Engineering.Materials (Basel, Switzerland) · 2022Article
- Conservation Environments' Effect on the Compressive Strength Behaviour of Wood-Concrete Composites.Materials (Basel, Switzerland) · 2022Article
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8 authors.
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Abstract
Environmentally sustainable cement mortars containing wheat straw (Southern Italy, Apulia region) of different length and dosage and perlite beads as aggregates were prepared and characterised by rheological, thermal, acoustic, mechanical, optical and microstructural tests. A complete replacement of the conventional sand was carried out. Composites with bare straw (S), perlite (P), and with a mixture of inorganic and organic aggregates (P/S), were characterised and compared with the properties of conventional sand mortar. It was observed that the straw fresh composites showed a decrease in workability with fibre length decrease and with increase in straw volume, while the conglomerates with bare perlite, and with the aggregate mixture, showed similar consistency to the control. The thermal insulation of the straw mortars was extremely high compared to the sand reference (85-90%), as was the acoustic absorption, especially in the 500-1000 Hz range. These results were attributed to the high porosity of these composites and showed enhancement of these properties with decrease in straw length and increase in straw volume. The bare perlite sample showed the lowest thermal insulation and acoustic absorption, being less porous than the former composites, while intermediate values were obtained with the P/S samples. The mechanical performance of the straw composites increased with length of the fibres and decreased with fibre dosage. The addition of expanded perlite to the mixture produced mortars with an improvement in mechanical strength and negligible modification of thermal properties. Straw mortars showed discrete cracks after failure, without separation of the two parts of the specimens, due to the aggregate tensile strength which influenced the impact compression tests. Preliminary observations of the stability of the mortars showed that, more than one year from preparation, the conglomerates did not show detectable signs of degradation.
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