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Effect of recycled brick powder on the properties of selfcompacting fiber reinforced mortars produced with different cement types

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Frontiers of Structural and Civil Engineering 2024年第5期18卷 743-759页

作者： Serkan ETLI Department of Civil Engineering Kahramanmaras Sutcu Imam UniversityKahramanmaraş46040Turkey

It is known that clay-based building materials such as bricks and tiles accumulate in landfills at the end of their useful *** an alternative,recycling clay-based building material can reduce the negative environmental *** brick powder(RBP)is obtained by grinding waste brick and tile collected from end-of-life *** the scope of the study,the use of self-compacting fiber reinforced mortars(SCFRMs)produced with RBP using CEM-I 42.5R and 52.5R class cements for two different cement classes was *** accordance with EFNARC,a water binding ratio of 0.42 was used to control the workability and strength of the *** the produced SCFRM,1%,2%,and 3%by weight binder Polypropylene(PP)fiber was added to the blends with 10%,20%,and 30%RBP substitutes.A total of 32 SCFRM mixes were produced and *** flexural and compressive strengths at 7,28,56,and 90 d were evaluated on the produced *** addition,porosity and water absorbency values were examined since these are significant for durability *** was observed that the use of RBP increases durability,and the use of fiber can have positive effects in terms of both durability and strength.

关键词： cement strength tile/brick dust self-compacting fiberized mortar

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Influences of composite grinding aids on grinding efficiency and performances of cement

Influences of composite grinding aids on grinding efficiency...

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2011 International Conference on Materials for Renewable Energy & Environment(ICMREE 2011)

作者： Qing Chang1 School of Material Science and Engineering University of Jinan Jinan ChinaZhendong Tao2 School of Material Science and Engineering University of Jinan Jinan China

Grinding experiments of slag cement and fly ash cement by adding two kinds of composite grinding aids were carried *** analysis the relationship between the macroscopic and microscopic structures by *** results show that the grinding aids can significantly increase the mobility,improve the grinding efficiency and performances of *** grinding effect of composite grinding aids to slag steel cements is much better than that to fly ash cements.

关键词： composite grinding aids grinding efficiency cement strength

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