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首页> 外文会议>International Conference on High Performance Structures and Materials >A study on use of blended ferrocement: a high performance material for repair/strengthening of brick masonry columns
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A study on use of blended ferrocement: a high performance material for repair/strengthening of brick masonry columns

机译：混纺铁卵的使用研究：砖砌柱修复/加固的高性能材料

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The use of ferrocement, containing blended cement, to repair and enhance the strength of brick masonry columns of old buildings and structures showing distress has been investigated for use as a rehabilitation/strengthening material. Intensive experimental study has been carried out on plain brick masonry columns and brick masonry columns with single, double and triple layers of ferrocement, with/without the use of chemical bonding agents. Use of blended cements containing agricultural waste i.e. rice husk ash have not as yet been investigated at all for use in ferrocement. Blended cement containing 75% OPC and 25% rice husk ash has now been investigated for use in ferrocement. Ferrocement containing blended cement has been observed to substantially increase the load carrying capacity of brick masonry columns along with decreasing the strains by about 50%. Strength improvements of up to 160% in the load carrying capacity of columns with single layered ferrocement have been observed whilst about 100% strength improvements have been observed in columns with 2/3 layers of ferrocement applications. The slope of the stress-strain curve resembles typical curves characteristic of high strengths. The results of this study have been highly encouraging and the use of ferrocement with blended cement is recommended for the repair and rehabilitation/strengthening of brick masonry columns. The use of rice husk ash for blending with ordinary Portland cement produces a stronger, impermeable and durable material in addition to ease of in-situ application, reducing the disposal problem of this agricultural waste and reducing the costs of repairs.
机译：使用含有混纺水泥的铁卵，修复和增强旧建筑物和结构的砖砌柱的强度，以用作康复/加强材料。密集的实验研究已进行了在普通砖柱和砖柱与钢丝网水泥的单，双和三层，有/无使用化学结合剂。使用含有农业废弃物的混纺水泥I.。稻壳灰尚未尚未调查用于铁缩。现在已经研究了含有75％OPC和25％稻壳灰的混纺水泥用于铁卵。已经观察到含有混纺水泥的含有混纺水泥，以大大提高砖砌柱的负荷承载能力以及将菌株降低约50％。已经观察到具有单层与单层细胞的柱的承载能力高达160％的强度改善，同时在具有2/3层的二氧化件应用的柱中观察到约100％的强度改进。应力 - 应变曲线的斜率类似于高强度的典型曲线。该研究的结果一直非常令人鼓舞，建议使用与混纺水泥的铁胞使用，用于修复和康复/加强砖砌柱。除普通波特兰水泥混合外，使用稻壳灰，除了出于现场应用，还可易于应用，减少这种农业废物的处理问题，降低维修费用。

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