Application of commercial sand aggregates in hydrophobized hydraulic concrete materials
Đã lưu trong:
| Nhiều tác giả: | , |
|---|---|
| Định dạng: | artículo original |
| Trạng thái: | Versión publicada |
| Ngày xuất bản: | 2024 |
| Miêu tả: | Because precursors such as sand are generally accessible, concrete has become a widely used construction material. Not all available sands, however, fulfill the requirements of purity, granulometry, shape and porosity for use in concrete materials. Here we report the setting of the hydrophobicity of hydraulic concrete matrices prepared with commercial sands and hydrophobic silica particles (dodecyl-modified silica) added to their mixtures. The granulometry and porosity of the selected fine aggregates were confirmed to influence the water absorption of hydrophobized concrete matrices. Water absorption decreased more than 30 % on addition of silica hydrophobized with dodecyl. As the functionalization was performed from the mix prepared with commercial sands, an improved hydrophobicity of the materials was provided integrally to the matrix. |
| Quốc gia: | Portal de Revistas TEC |
| Tổ chức giáo dục: | Instituto Tecnológico de Costa Rica |
| Repositorio: | Portal de Revistas TEC |
| Ngôn ngữ: | Inglés Español |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/6934 |
| Truy cập trực tuyến: | https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/6934 |
| Từ khóa: | Concrete matrix hydrophobic particles porous-media characterization water transport Caracterización de arenas concreto partículas hidrofóbicas matriz porosidad transporte de agua |