Sugarcane bagasse ash sand (SBAS) is an agroindustrial waste from the sugarcane industry. The aim of this study is to analyse the differences between the pore size distribution of mortars produced by partially replacing natural sand with SBAS. The following techniques are used: X-ray computed tomography, mercury intrusion porosimetry, and petrographic analysis. The tomography results show that mortars produced with SBAS contain fewer pores in the ranges 60–80 μm and 100–300 μm than mortar without SBAS. In particular, SBAS reduces macropores larger than 0.1 μm. An SBAS content of 30% replacing fine sand contributes to a 44% reduction of pores larger than 0.1 μm. The results show that SBAS incorporation changes the pore size distribution without affecting the porosity of the mortars.

甘蔗渣灰砂（SBAS）是来自甘蔗工业的一种农业工业废料。这项研究的目的是分析用SBAS代替天然砂生产的砂浆的孔径分布之间的差异。使用以下技术：X射线计算机断层扫描，压汞法和岩相分析。断层扫描结果表明，与不使用SBAS的砂浆相比，用SBAS制成的砂浆在60-80μm和100-300μm范围内的孔隙更少。尤其是，SBAS可以减少大于0.1μm的大孔。SBAS含量替代细砂的含量为30％，可将大于0.1μm的孔减少44％。结果表明，SBAS的掺入改变了孔径分布，而不影响砂浆的孔隙率。