A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Municipal solid waste incineration bottom ash self-foaming light material and preparation method thereof
The invention relates to a municipal solid waste incineration bottom ash self-foaming light material and a preparation method thereof. The method comprises the following steps: firstly uniformly mixing bottom ash, slag micro powder and slaked lime powder, then adding sodium hydroxide and liquid sodium silicate, and utilizing the characteristic that the bottom ash foams and expands when meeting alkali to expand the volume of the material. Thus, the purpose of light weight of the material is realized, meanwhile, rapid hardening of the bottom ash light material is achieved through liquid sodium silicate, it is ensured that bubbles generated when bottom ash meets alkali can be sealed in the material, foaming of a foaming agent is not needed for preparation of the bottom ash light material, meanwhile, a water reducer and an accelerator do not need to be doped, and the bottom ash light material has the advantages of being low in preparation cost and excellent in mechanical property and durability; meanwhile, the use of the bottom ash light material not only can eliminate the environmental pollution caused by the accumulation of a large amount of bottom ash, but also can relieve the excessive dependence on Portland cement and reduce the excessive consumption of non-renewable resources.
一种城市生活垃圾焚烧底灰自发泡轻质材料与制备方法，该方法首先将底灰、矿渣微粉与熟石灰粉混合均匀，然后加入氢氧化钠与液态硅酸钠，利用底灰遇碱发泡膨胀的特性使材料体积发生膨胀，从而实现材料轻质的目的，同时通过液态硅酸钠实现底灰轻质材料的速凝，确保底灰遇碱产生的气泡能够密封在材料内，底灰轻质材料的制备不需发泡剂发泡，同时不需掺入减水剂与速凝剂，具有制备成本低，力学性能与耐久性优良的特点，同时底灰轻质材料的使用既可消除底灰大量堆积所造成的环境污染，又可缓解对硅酸盐水泥的过度依赖，减少对不可再生资源的过度消耗。
Municipal solid waste incineration bottom ash self-foaming light material and preparation method thereof
The invention relates to a municipal solid waste incineration bottom ash self-foaming light material and a preparation method thereof. The method comprises the following steps: firstly uniformly mixing bottom ash, slag micro powder and slaked lime powder, then adding sodium hydroxide and liquid sodium silicate, and utilizing the characteristic that the bottom ash foams and expands when meeting alkali to expand the volume of the material. Thus, the purpose of light weight of the material is realized, meanwhile, rapid hardening of the bottom ash light material is achieved through liquid sodium silicate, it is ensured that bubbles generated when bottom ash meets alkali can be sealed in the material, foaming of a foaming agent is not needed for preparation of the bottom ash light material, meanwhile, a water reducer and an accelerator do not need to be doped, and the bottom ash light material has the advantages of being low in preparation cost and excellent in mechanical property and durability; meanwhile, the use of the bottom ash light material not only can eliminate the environmental pollution caused by the accumulation of a large amount of bottom ash, but also can relieve the excessive dependence on Portland cement and reduce the excessive consumption of non-renewable resources.
一种城市生活垃圾焚烧底灰自发泡轻质材料与制备方法，该方法首先将底灰、矿渣微粉与熟石灰粉混合均匀，然后加入氢氧化钠与液态硅酸钠，利用底灰遇碱发泡膨胀的特性使材料体积发生膨胀，从而实现材料轻质的目的，同时通过液态硅酸钠实现底灰轻质材料的速凝，确保底灰遇碱产生的气泡能够密封在材料内，底灰轻质材料的制备不需发泡剂发泡，同时不需掺入减水剂与速凝剂，具有制备成本低，力学性能与耐久性优良的特点，同时底灰轻质材料的使用既可消除底灰大量堆积所造成的环境污染，又可缓解对硅酸盐水泥的过度依赖，减少对不可再生资源的过度消耗。
Municipal solid waste incineration bottom ash self-foaming light material and preparation method thereof
一种城市生活垃圾焚烧底灰自发泡轻质材料与制备方法
HUANG GUODONG (author) / LI YONGYU (author) / CUI YI (author) / ZHANG RUIJIE (author) / WANG QI (author)
2021-11-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
High-Volume Municipal Solid Waste Incineration Bottom Ash Concrete
| British Library Conference Proceedings | 2017
European Patent Office | 2024
| European Patent Office | 2023
Leaching toxicity characteristics of municipal solid waste incineration bottom ash
| Online Contents | 2015
Unconfined Compressive Strength of Municipal Solid Waste Incineration Bottom Ashes
| Online Contents | 2018