## 1 Introduction
[24] showed that when sand was entirely replaced by RWG, the reduction in thermal conductivity was more significant for architectural mortars. Additionally, ref. [25] were interested in the use effect of the recycled glass on the lightweight concrete, and they showed that the integration of 45% of glass as sand in concrete led to the thermal conductivity reduction by about 12% and 16% with respect to RC respectively at ambient and elevated temperature 600 \({}^{\circ}\)C. [PERSON] et al. [26] showed that the replacement of total sand with crushed glass (0-4 mm) in lightweight concrete specimen decreased its thermal conductivity by around 60%. In 2019, [PERSON] et al. [27] reported that regardless of the particle size, the thermal conductivity and density of the dry-mix blocks made with glass aggregates were significantly lower than the ones made with river sand. Moreover, concrete modified with RWG is characterized by creation of two different reactions, with opposite effects. First, the substitution of sand with glass grains in the concrete gives rise to beneficial pozzolanic reaction between the ground glass and cement past, result in formation of the compounds with binding properties. These compounds are amorphous gels of the C-S-H type, with Ca/Si ratios generally much lower than those of the C-S-H in cement [28]. [PERSON] et al. [29] found that finely ground glass powders exhibited very high pozzolanic activity. [PERSON] et al. [30] showed that after 90 days of curing for 20% of glass, the pozzolanic activity became substantial when the transition fineness was around 30 m\({}^{2}\).kg\({}^{-1}\) (140 \(\upmu\)m). [PERSON] and [PERSON] [31] observed that when 30% of glass powder was replaced by sand, the strength was significantly greater than that of the control mixture due to beneficial pozzolanic activity. Second, the reinforcement of concrete with RWG generated a detrimental alkali silica reaction (ASR), known as concrete cancer, by forming amorphous gels between the reactive silica in glass and alkali ions in cement paste. The formed alkali silica provoked cracks in the elaborated composite [32]. The effectiveness of this phenomenon grew with the size increase of the glass particles [7; 9; 33]. Furthermore, the ASR in concrete with glass could also be caused by the micro residual cracks inside recycled glass particles, generated during the glass bottle crushing operations [34; 35; 36]. To attenuate the deleterious alkali silica reaction, some authors proceeded to add suppressors into concrete: [37] added fly ash, [38] dealt with silica fume, and [39] were interested in rice husk ash. To the best of our knowledge, this is the first scientific research which simultaneously investigated the durability against alkali silica reaction and mechanical and thermal properties of concrete reinforced with different volume percentages of RWG varying from 0 to 50%. Two major issues were addressed, namely the scarcity of sand and the great potential of waste glass that is misused. Durability against alkali-silica reaction was assessed by autoclaving method, SEM-EDS, and optical microscopic to examine the concrete-based composite stability. Compressive and flexural strengths were determined at 28 and 90 days of curing. Furthermore, measurement series of thermal conductivity and thermal effusivity were carried out at dry and saturated states.