This study investigates the high performance of feldspathic solid solution-based geopolymer composites. The results show that a feldspathic solid solution with incongruent dissolution in an alkaline medium produces a differential amount of N-A-S-H+ polysialate geopolymer, depending on the mineral nature of the raw solid precursor. In turn, the presence of both N-A-S-H and polysialate geopolymer reduced the cumulative pore volume to a nanometric size, leading to flexural and compressive strengths in the range of 26–36 MPa and 86–100 MPa, respectively. The limited dissolution in the alkaline medium of the feldspathic powders allowed for a direct correlation among the Young modulus, the hardness, and the N-A-S-H + polysialate geopolymer. The findings show that when the amount of N-A-S-H and polysialate geopolymer is sufficient to cover the incongruent dissolved grains of solid solutions with no excess of geopolymer gel, the bonding strength developed exhibits high mechanical performance in the final composite The results confirm the possibility of reproducing dimensioned stones by geopolymerizing the feldspathic solid solutions.

本研究调查了长石固溶体地质聚合物复合材料的高性能。结果表明，在碱性介质中溶解度不一致的长石固溶体产生不同量的 NAS-H+ 聚唾液酸地质聚合物，这取决于原始固体前体的矿物性质。反过来，NASH 和聚唾液酸地质聚合物的存在将累积孔隙体积减小到纳米级，导致弯曲和压缩强度分别在 26-36 MPa 和 86-100 MPa 范围内。长石粉在碱性介质中的有限溶解允许杨氏模量、硬度和 NASH + 聚唾液酸地质聚合物之间存在直接关联。