Green concrete: Prospects and challenges

Joining of carbon fibre reinforced polymer (CFRP) composites and aluminium alloys – A review Part A Applied science and manufacturing

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Green concrete: A review of recent developments

Presently, the construction industries worldwide are looking for materials with low carbon footprint and environment friendliness. Yet, ordinary Portland cements (OPC) based materials are widely used in building sectors and remain majorly responsible for carbon pollution. The deterioration that happens in such concretes from the very beginning of the service not only life reduces their lifespan but also demands more OPC. Furthermore, the continuation and repairing are mostly laboured intensive and too expensive. Thus, self-recovery of the damaged concretes is significant concerning environmental mitigation and energy saving. Lately, nanomaterials based concretes have been exploited diversely in the construction engineering owing to their enhanced mechanical and durable attributes. The design as well as production of self-healing and sustainable concrete is an intensely research topic in nanotechnology. In this view, this article provides a comprehensive assessment on nanomaterials based self-healing concretes. The past development, recent trends, environmental impact, sustainability, merits and demerits of several methods of self-healing concrete production are discussed.

Sustainability of nanomaterials based self-healing concrete: An all-inclusive insight

Durability and life cycle evaluation of self-compacting concrete containing fly ash as GBFS replacement with alkali activation

Effect of particle size of fly ash on the properties of lightweight insulation materials

In this contribution, a manageable foam-casting technique for the preparation of novel aluminum borate foams (ABFs) as thermal insulators with highly controllable performances is presented. ABFs were fabricated from α-Al2O3 and 2Al2O3·B2O3 with the addition of various amounts of foaming agents, thickening agents, and slurry solid contents. The dispersions and rheological properties of the slurries were then examined, followed by exploration of microstructural evolution and testing of mechanical/thermal properties. It should be noted that the generated micro-pores generated and interlocking rod-like 9Al2O3·2B2O3 crystals may lead to superior mechanical tolerances and lower thermal conductivities for the ABFs. In general, the as-prepared ABFs with porosities ranging from 73.8 to 96.3 vol%, compressive strengths of 8.20–0.15 MPa, and thermal conductivities of 0.228–0.046 W/(mK) (200–800 °C) could render them suitable for application as high-temperature thermal insulating materials.

Ruofei Xiang

Papers

Effect of particle size of fly ash on the properties of lightweight insulation materials

Novel aluminum borate foams with controllable structures as exquisite high-temperature thermal insulators

Effects of nano-alumina content on the formation of interconnected pores in porous purging plug materials

Porous alumina ceramics with enhanced mechanical and thermal insulation properties based on sol-treated rice husk

Effect of inorganic acid on the phase transformation of alumina