Durability of rammed earth blocks

夯土因其节能、环保和可持续的方式而成为最新的趋势。近年来的研究使夯土建筑现代化，采用水泥处理来提高其强度和耐久性。然而，与水泥生产和应用相关的不可补偿的环境损害对其在夯土建筑中的广泛使用提出了重要的争论。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。粉煤灰是一种低能耗的副产品，是公认的环保材料。在夯土中开发一种新的水泥替代添加剂，使用纸浆厂粉煤灰和碱性活化剂，可以通过大幅减少碳足迹对可持续建筑行业产生重大影响。它也可以成为回收和再利用纸浆和造纸厂飞灰的有效策略，从而最大限度地减少垃圾填埋场的环境负担。我们的合作伙伴是创新地球公司，该公司打算确定纸浆厂粉煤灰在夯土中部分替代水泥的潜在用途，以促进和实施可持续和环保的建筑战略。该项目与Innovative Earth公司合作，旨在从纸浆厂的粉煤灰中开发惰性增值二次产品，作为夯土的粘合剂，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。

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.