The Effective Use of Life Waste, Abolition Glass Bottle and Sewage Sludge Molten Slag, as Material for Concrete

生活垃圾、废玻璃瓶和污水污泥熔渣的有效利用作为混凝土材料

• 批准号: 17560415
• 负责人: KOJIMA Takayuki
• 金额: $ 2.18万
• 依托单位: Ritsumeikan University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17560415/
• 关键词: Life waste; Waste recycling; Abolition glass bottle; Sewage sludge molten slag; アルカリシリカ反応

Strength tests of concrete at the 5-year age including abolition glass bottle powder as a fine aggregate were carried out. Strength of the concrete was increased with pozzolanic reaction, and the ratio of strength increase to the 5-year age was higher than it to the 1-year age. Especially, the highest ratio of strength increase was observed when glass substitution ratio was 10%. However, the secant modulus of elasticity at the 5-year age decreased less than that at the 1-year age and almost equal with that at the 91-day age.From test results of physical property of sewage sludge molten slag as a coarse aggregate, the percentage of abrasion and the crushing value were higher, and the strength of the slag as a coarse aggregate was lower than the crushed stone. And the percentage of water absorption satisfied the JIS standard, but it was higher than the crushed stone. The slump and the air content of fresh concrete, when using the same amount of chemical admixture for concrete, were incre … More ased and the strength of concrete was decreased with increase of slag substitution ratio. The drying shrinkage of concrete was not influenced of slag substitution ratio, but the freeze-thaw resistance was decreased with increase of slag substitution ratio. The compressive fatigue strength at two million cycles decreased a little when compared with the normal concrete. The survival probability was guaranteed for 95% or more when the "K" was assumed to be 10 on the equation of fatigue strength of standard specifications for concrete structures, paving of JSCE.The test result of physical property of sewage sludge molten slag as fine aggregate satisfied the JIS standard. The time of setting concrete using sewage sludge molten slag as a fine aggregate became early and the bleeding ratio was increase with increase of slag substitution ratio. The strength of the slag substitution ratio 100% concrete was almost equal with the 0% concrete. The freeze-thaw resistance was in the same, and it was not related with slag substitution ratio. At the time of completion 300 cycles, the mass decrease ratio of the slag substitution ratio 100% concrete and the 0% concrete were in the same and the 25%, 50% and 75% concrete were 5 to 8 times of the 0% concrete. Less

进行了5年龄期混凝土的强度试验，包括废弃玻璃瓶粉作为细骨料。混凝土强度随火山灰反应而增加，5a龄期的强度增加率高于1a龄期。特别是当玻璃替代率为10%时，强度增强率最高。而5a龄期的割线弹性模量下降幅度小于1a龄期，与91d龄期基本持平。从粗集料的物理性质测试结果来看，作为粗集料的污泥熔渣的磨损率和压碎值都较高，而作为粗集料的矿渣的强度低于碎石。吸水率符合JIS标准，但高于碎石。当混凝土中掺入相同掺量的化学外加剂时，新拌混凝土的坍落度和含气量均增加…。矿渣掺量越大，混凝土强度越低。混凝土的干燥收缩不受矿渣取代率的影响，但抗冻融性能随矿渣取代率的增加而降低。与普通混凝土相比，混凝土在200万次循环下的压缩疲劳强度略有下降。在JSCE铺装混凝土结构标准规范疲劳强度公式中，当“K”设为10时，存活概率保证在95%以上。城市污泥熔渣作为细集料的物理性能试验结果符合JIS标准。以城市污水处理厂污泥熔渣为细骨料的混凝土凝结时间随矿渣取代率的增加而提前，掺水比增大。矿渣取代率为100%的混凝土的强度与掺量为0%的混凝土基本相同。抗冻性相同，与矿渣取代率无关。在完成300个循环时，矿渣替代率100%混凝土和0%混凝土的质量减少率相同，25%、50%和75%混凝土是0%混凝土的5~8倍。较少

项目成果

Experimental study on development of concrete and concrete materials to reduce environmental burdens

开发混凝土及混凝土材料减轻环境负担的实验研究

• 发表时间: 2007
• 期刊: Doctoral Dissertation of Ritsumeikan University
• 作者: Naho TAKEDA;Takayuki KOJIMA
• 通讯作者: Takayuki KOJIMA

Mechanical properties of concrete used coarse molten slag aggregate made from sewage sludge

污泥粗骨料混凝土力学性能

• 发表时间: 2006
• 期刊: Proceeding of the Japan Concrete Institute Vol.28-No.1
• 作者: Naho TAKEDA;Takayuki KOJIMA
• 通讯作者: Takayuki KOJIMA

Compressive fatigue of concrete used sewage sludge molten slag as coarse aggregate

污泥熔渣粗骨料混凝土的压缩疲劳

• 发表时间: 2006
• 期刊: Proceeding of the 61st Annual Conference of the Japan Society of Civil Engineers 5
• 作者: Naho TAKEDA;Takayuki KOJIMA
• 通讯作者: Takayuki KOJIMA

下水汚泥スラグ粗骨材を用いたコンクリートの圧縮疲労特性

污泥矿渣粗骨料混凝土的压缩疲劳性能

• 发表时间: 2006
• 期刊: 平成18年度土木学会関西支部年次学術講演会講演概要集 (発表予定)
• 作者: 武田字浦;児島孝之
• 通讯作者: 児島孝之

下水汚泥スラグを粗骨材として用いたコンクリートの圧縮疲労特性

以污泥渣为粗骨料混凝土的压缩疲劳性能

• 发表时间: 2006
• 期刊: 第61回年次学術講演会講演概要集[(社)土木学会]
• 作者: 武田 字浦;武田字浦;武田字浦
• 通讯作者: 武田字浦