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Durability of rammed earth blocks

夯土块的耐久性

基本信息

批准号：
543417-2019
负责人：
Siddiqua, Sumi
金额：
$ 1.82万
依托单位：
University of British Columbia
依托单位国家：
加拿大
项目类别：
Engage Grants Program
财政年份：
2019
资助国家：
加拿大
起止时间：
2019-01-01 至 2020-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=680605
关键词：
Durability rammed earth blocks

项目摘要

The rammed earth has become the newest trend owing to its energy-efficient, eco-friendly, and sustainable approach. The recent research has modernized rammed earth construction by using cement treatment to improve its strength and durability. However, the non-compensable damages to the environment associated with cement production and application pose significant arguments against its widespread use in rammed earth construction. Therefore, it is necessary to provide alternative materials with same or better properties, and with reduced environmental and energy impacts. Fly ash is recognized as an environmentally friendly material because it is a by-product and has low embodied energy. The development of a new additive for cement replacement in rammed earth, using pulp mill fly ash with an alkaline activator, can have major impact on sustainable construction industry by substantial reduction in carbon footprint. It can also become an effective strategy of recycling and reusing fly ash from pulp and paper mills thereby minimizing environmental burden of landfills.Our partner organization is Innovative Earth Inc, who intends to identify the potential use of pulp mill fly ash as partial substitution for cement in rammed earth, in view of promoting and implementing sustainable and eco-friendly construction strategies. In collaboration with Innovative Earth Inc, this project aims on developing inert value added secondary product from pulp mill fly ash to be used as binder in rammed earth in order to improved strength and durability properties. This will benefit the construction company to expand their business, create job opportunities and contribute in Canadian economy.

由于其节能，环保和可持续的方法，夯土已成为最新的趋势。最近的研究通过使用水泥处理来提高其强度和耐久性，使夯实土建筑现代化。然而，水泥生产和应用对环境造成的不可赔偿的损害，对水泥在夯土建筑中的广泛使用提出了重要的论点。因此，有必要提供具有相同或更好性能的替代材料，并减少对环境和能源的影响。粉煤灰被认为是一种环境友好的材料，因为它是一种副产品，具有低的隐含能量。利用纸浆厂粉煤灰和碱性活化剂，开发一种新的用于夯实土中水泥替代的添加剂，可以通过大幅减少碳足迹对可持续建筑业产生重大影响。它还可以成为回收和再利用纸浆和造纸厂米尔斯飞灰的有效策略，从而最大限度地减少垃圾填埋场的环境负担。我们的合作伙伴组织是Innovative Earth Inc，该组织打算确定纸浆厂飞灰的潜在用途作为水泥的部分替代品在夯土中，以促进和实施可持续和环保的建设战略。该项目与Innovative Earth Inc合作，旨在开发纸浆厂粉煤灰的惰性增值二次产品，用作夯实土的粘合剂，以提高强度和耐久性。这将有利于建筑公司扩大业务，创造就业机会，为加拿大经济做出贡献。