Nano-treatment of Autoclaved Aerated Concrete Waste and Its Usage in Cleaner Building Materials

Potential Use of Wastes of Thermostone Blocks and Ceramic Tiles as Recycled Aggregates in Production of Foam Concrete

“…The market associated with the production of thermostone blocks is estimated at 6.32 billion dollars in 2016 and is anticipated to increase to 10.98 billion dollars by 2023 [21]. Thermostone waste is a common kind of waste generated during works of construction and demolition and is created when thermal preservation wall materials are built and torn down [22]. Eliminating thermostone blocks in landfill sites rather than being reused and recycled in new buildings can lead to environmental concerns, such as leaching of contaminants and alteration in pH in nearby soil and water [21].…”

“…Eliminating thermostone blocks in landfill sites rather than being reused and recycled in new buildings can lead to environmental concerns, such as leaching of contaminants and alteration in pH in nearby soil and water [21]. In fact, there is very little literature related to the recycling of thermostone units in new construction and buildings [22]. The utilisation of thermostone waste as a lightweight aggregate in the manufacturing of foam concrete is one of the conceivable ways which not only benefits the use of industrial waste and improves energy efficiency but also is advantageous for promoting the strength and reducing the final weight of concrete [23].…”

“…The utilisation of thermostone waste as a lightweight aggregate in the manufacturing of foam concrete is one of the conceivable ways which not only benefits the use of industrial waste and improves energy efficiency but also is advantageous for promoting the strength and reducing the final weight of concrete [23]. Unlike the other pozzolanic industrial by-products, for instance, slag and fly ash, thermostone waste powder is a hydrated waste with a weak capacity for re-hydration [22]. This waste powder is commonly used in concrete as a filling material, which in most conditions reduces the concrete strength.…”

Effect of Nano SiO2 Enhanced Polyurethane Road Grouting Material on Folding Strength and Durability of Road Concrete

“…Some researchers have initially studied the effect of nano-SiO2 on the initial strength of concrete, and the results show that the addition of nano-SiO2 helps to increase the initial strength of concrete, and there is an optimal dosage [9][10]. Some researchers have conducted related experiments and found that adding an appropriate amount of nano-SiO2 can significantly improve the air-tightness of the corresponding concrete [11][12]. Some scholars have conducted related studies on the effect of nano-SiO2 on the anti-segregation performance of lightweight aggregate concrete.…”

Behaviour of thermostone blocks with and without cement mortar plastering exposed to high temperatures

“…Some studies have investigated the types of failures which may occur during and after the manufacturing process [5]. While others have considered the possibility of employing waste Autoclaved aerated concrete as a replacement to coarse and fine aggregates in concrete mixtures [6,7], or as raw material to create nano-scale materials [8]. Others have suggested inspecting the influence of glazing (for architectural purposes) on the physical properties [9], and researchers have also suggested improving the efficacy of Thermostone waste using class waste [10].…”