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Effect of Glass Powder on Concrete Sustainability

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New Journal of Glass and Ceramics 2017年第2期7卷 34-47页

作者： Ablam Zidol Monique Tohoue Tognonvi arezki tagnit-hamou Department of Civil Engineering University of SherbrookeQuebecCanada Department of Biological Sciences University of Peleforo-Gbon-CoulibalyKorhogoCote d’Ivoire

As defined by the American Concrete Institute (ACI), alternative supplementary cementitious materials (ASCMs) and local materials are very important in concrete sustainability. As an ASCM, glass powder (GP) shows excellent pozzolanic properties. This paper focuses on characterization and the effect of GP on concrete properties compared to those of Class F fly ash (FFA) and ground granulated blast furnace slag (GGBS). Concrete incorporating 0, 20 and 30% of GP and other concrete mixes containing 30% of FFA or GGBS were cast. The concrete mixes considered in this study have water to binder (w/b) mass ratio ranging from 0.35 to 0.65. The mechanical properties such as compressive strength and durability including chloride ions permeability and chloride ions diffusion are evaluated. The results show that GP develops effects on mechanical properties similar to those of FFA and performs better than GGBS and FFA in terms of permeability reduction. GP reduces dramatically chloride permeability of concrete regardless w/b ratio, favoring an improvement of the concrete durability. Because of the interesting permeability developed by concretes incorporating GP, its use as an ASCM is promising.

关键词： Glass Powder Concrete Sustainability Alternative Supplementary Cementitious Materials Permeability

Reactivity of Fine Quartz in Presence of Silica Fume and Slag

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Engineering（科研） 2011年第6期3卷 569-576页

作者： Karima Arroudj Abdelfetah Zenati Mohamed Nadjib Oudjit Abderrahim Bali arezki tagnit-hamou 不详

Dune sand is a very abundant material in south of Algeria. Its high silica content gives a partial pozzolanic reactivity due to its crystalline state. This paper investigates the evolution of cement hydration based on a binary addition particularly the reactivity of dune sand finely ground in the presence of an amorphous addition: silica fume or blast furnace slag. Thus, four combinations of binary additions by substitution have been chosen. The X-ray diffraction analyses performed on cement pastes containing additions have shown the importance of the mineralogy and silica content of additions on their pozzolanic reactivity. Dune sand becomes reactive at long term, especially when associated up to 10% of amorphous addition (blast furnace slag or silica fume). It results an increasing in mechanical strength of Ultra High Performance Concrete (UHPC) and an improvement of the microstructure.

关键词： Dune Sand Blast Furnace Slag Silica Fume C-S-H Pozzolanic Reactivity XRD Ultra High Performance Concrete

Reactivity of Recycled Glass Powder in a Cementitious Medium

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New Journal of Glass and Ceramics 2020年第3期10卷 29-44页

作者： Monique Tohoue Tognonvi arezki tagnit-hamou Léon Koffi Konan Ablam Zidol Wilfried Cyrille N’Cho Department of Biological Sciences University of Peleforo-Gbon-Coulibaly Korhogo C&#244 te d’Ivoire Department of Civil Engineering University of Sherbrooke Quebec Canada Laboratory of Chemistry of Inorganic Materials University of Felix Houphouet-Boigny Abidjan C&#244 te d’Ivoire

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 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.

关键词： Glass Powder Pozzolanic Reaction Calcium Silicate Hydrate Thermal Analysis X-Ray Diffraction

多元醇类化合物作为熟料助磨剂对粉体流动性和水泥水化的影响

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水泥助磨剂技术 2011年第5期 1-6页

作者： C. Jolicoeur S. Morasse J. Sharman A. tagnit-hamou F. Slim M. Pag e 赵计辉（译）王栋民（译）加拿大多伦多诺拉姆包装公司加拿大希尔布鲁克大学加拿大圣巴西魁北克水泥公司加拿大坎迪亚克市汉迪化学有限公司中国矿业大学（北京）混凝土与环境材料研究所 100083

为了明确用作水泥粉磨添加剂原材料的潜在作用，我们对一系列多元醇类化合物进行了研究。通过这些化合物对水泥粉体流动性的测试效果表明，低分子量的1，2-二醇能使粉体流动性得到很大的提高，这种效果取决于二元醇分子的脂肪烃基（脂... 详细信息

为了明确用作水泥粉磨添加剂原材料的潜在作用，我们对一系列多元醇类化合物进行了研究。通过这些化合物对水泥粉体流动性的测试效果表明，低分子量的1，2-二醇能使粉体流动性得到很大的提高，这种效果取决于二元醇分子的脂肪烃基（脂族基），因而这种分子可以促进水泥颗粒的分散，以达到提高熟料粉磨效率的要求。通过对水泥水化热的测试还表明，多元醇给予水化反应一个适度的加速（促进）作用。因此，选择多元醇类化合物对于水泥助磨剂的配制很有用，同时有助于达到提高粉磨效率和控制水泥水化行为的目标。

关键词：醇类化合物水泥水化热粉体流动性水泥助磨剂熟料低分子量测试效果粉磨效率