权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Systematization of Manufacturing Technology and Application of Porous Concrete Considering internal Structure

考虑内部结构的多孔混凝土制造技术的系统化及应用

基本信息

批准号：
14390029
负责人：
HATANAKA Shigemitsu
金额：
$ 8.45万
依托单位：
Mie University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14390029/
关键词：
Porous concrete Internal void structure Recycled aggregate Sound absorption property Compressive strength Void ratio Visco-elasto-plastic suspension element method Floating base structure for plantation 流動特性結合材

项目摘要

Results of the present research is summarized as follows.1. Manufacturing method and strength properties of porous concrete(1) In order to discuss the manufacturing condition of porous concrete with excellent strength properties, the relationships between volume of paste, flowability and surface vibration were investigated.(2) The compressive strength of porous concrete can be expressed by the exponential function formula using paste strength and void content.(3) Within the present experiments, the absolute volume of aggregates hardly influences the relationship Between the compressive strength and void ratio of porous concrete.2. The effect of recycled aggregates on strength properties of porous concrete(1) The relationship between compressive strength and void ratio is affected by the strength of recycled aggregates ; the curve shifts to the lower strength region when fracture of the aggregates is considered to occur.(2) The strength level where recycled aggregates in porous concrete may start to fracture is able to be easily predicted only by the compressive strength of original concrete for recycled aggregates and the void ratio of porous concrete with them.3. Large-size porous concrete using concrete rubble(1) The appropriate fluid property and adhesion behavior of the binder are determined to produce the large-size porous concrete structure by spraying method.(2) The applicability to fishing banks of large-size porous concrete is indicated.4. sound absorption property(1) Porous concrete panels have reasonable sound absorption capacity in the middle and high frequency range.(2) The sound absorption characteristics of porous concrete panels is affected by the condition of placing, the surface condition and the air void distribution of the panels.5. Light weight porous concrete as floating base(1) The applicability of the light weight porous concrete as a planting base for floating culture of plants was examined by planting of the water-cress and rice.

本研究的主要结果如下：1.多孔混凝土的制备方法与强度性能（1）为了探讨具有优良强度性能的多孔混凝土的制备条件，研究了浆体体积、流动性与表面振动之间的关系。(2)多孔混凝土的抗压强度可用浆体强度和孔隙率的指数函数公式表示。(3)在本试验范围内，骨料的绝对体积几乎不影响多孔混凝土的抗压强度与孔隙比之间的关系.再生骨料对多孔混凝土强度性能的影响（1）再生骨料强度对多孔混凝土抗压强度与孔隙比的关系有影响，当考虑骨料断裂时，曲线向低强度区移动。(2)再生骨料在多孔混凝土中可能开始断裂的强度水平仅通过再生骨料原混凝土的抗压强度和再生骨料多孔混凝土的孔隙比就能够容易地预测.利用混凝土毛石制备大尺寸多孔混凝土（1）确定了合适的粘结剂的流动性和粘结性能，采用喷射法制备大尺寸多孔混凝土结构。(2)指出了大粒径多孔混凝土在渔岸中的适用性.吸声性能（1）多孔混凝土板在中高频范围内具有合理的吸声能力。(2)多孔混凝土板的吸声特性受铺筑条件、表面状况和板内空隙分布的影响.轻质多孔混凝土作为漂浮栽培基质（1）通过种植西洋菜和水稻，考察了轻质多孔混凝土作为漂浮栽培植物种植基质的适用性。