Reactivity of Recycled Glass Powder in a Cementitious Medium

• 作者: Ablam Zidol Arezki Tagnit-Hamou Léon Koffi Konan Monique Tohoue Tognonvi Wilfried Cyrille N’Cho
• 来源期刊: 玻璃与陶瓷期刊(英文)
• 学科: 工学
• 关键词: Glass Powder Pozzolanic Reaction Calcium Silicate Hydrate Thermal Analysis X-Ray Diffraction
• 年，卷（期）: 2020,（3）
• 页码范围: 29-44
• 页数: 16页
• 分类号: TB3

摘要

The reactivity of the recycled glass powder (GP) in a cementitious medium has been studied over time by means of X-ray diffraction and thermal gravimetric analysis. Two different mixtures based on cement/glass powder (0 or 20 wt% GP) and lime/glass powder (70 wt% GP) were considered. Analysis revealed the coexistence of both hydration and pozzolanic reaction during the hardening of the mortars. At young age, the cement hydration would prevail over the pozzolanic one resulting in a decrease of physico-chemical </span></span><a name="_GoBack"></a><span><span><span style="font-family:"">and mechanical properties of the material due to the dilution effect. The pozzolanic reaction that predominates from 91 days, would induce the formation of supplementary C-S-H leading to improve the material properties.