### Effects of Resin in the Concrete  
Previous studies have reported that the application of cement-type adhesive mortar (e.g., dry cement mortar) may cause cracks as a result of the concentrated stress owing to changes in the volume during shrinkage and expansion [10]. To mitigate this type of construction defect, epoxy resin has been used by many authors. For example, [PERSON] et al. [11] injected epoxy resin into cement mortar, which was then applied to tiles. The adhesion performance of the tiles was subsequently evaluated in terms of the permeability and drying shrinkage under various curing conditions. In addition to the advantages of high adhesion strength and low shrinkage, [PERSON] et al. [12] reported that epoxy resin is particularly beneficial in constructions that utilize dry cement mortar as the adhesive.  
Recent studies have shown that cement mortars with natural resins have various advantages, and natural resins can be used as an alternative to epoxy resin. There are some experimental studies related to mixing natural resins (tragacanth, apricot resin, etc.) into cement to generate artificial pores besides the porous aggregates used in light concrete production. The total porosity of the material increases by generating artificial pores in the cement section of concrete in this way. For example, by adding tragacanth resin, cement and exclay aggregates, [PERSON] and [PERSON] [13] produced new concrete samples and investigated the thermal and mechanical properties of those concretes. [PERSON] and [PERSON] [14] tested the effects of natural resin on the properties of lightweight concrete and showed that artificial micropores are caused by the resin, so the density decreases and total porosity increases. [PERSON] [15] added tragacanth resin into the concrete mixture and improved the porosity of the concrete. [PERSON] [16] produced concrete samples by mixing pine cones in powder form and particle form with cement and pine tree resin at certain ratios. Thermal and mechanical tests were measured, and it was shown that the presence of resin in the concrete increases the porosity and thus reduces the thermal conductivity and compressive strength. [PERSON] and [PERSON] [17], who are also the co-authors of the present study, tested the effects of pine tree resin on the thermo-mechanical properties of newly produced pumice-cement composites. It was shown that some artificial pores (in addition to pumice pores) are generated in concrete blocks because of the pine tree resin's effect, which is an improvement in the insulation properties of the concrete. Furthermore, [PERSON] and [PERSON] [18] investigated the thermal and mechanical characteristics of concretes with apricot resin and expanded polystyrene aggregates.  
Turkey has important potential in terms of expanding clay reserves and cherry tree planting. Hence, combining the two to produce light concrete material is an important area of research. The main purpose of this research is to minimize both earthquake damage and energy loss in buildings by producing new low-density concrete for partition walls,floorings, ceiling concretes, briquettes or bricks and plaster. For this aim, two different grain diameters of exclays, cherry tree resin and Portland cement are mixed to form low density and low conductivity materials. The parametric analysis is carried out by varying the volumetric ratio of exclay and resin.