Experimental evaluations were conducted to determine the water sorptivity, setting time, and resistance to a highly acidic environment, of mortar with alkali-activated ground granulated blast furnace slag (GBS) binder and also of combinations of fly ash and GBS binders. Binders were activated using mixtures of NaOH and Na₂SiO₃ solutions. The molarity of NaOH in the mixtures ranged from 10 mol·L⁻¹ to 16 mol·L⁻¹, and the Na₂SiO₃/NaOH ratio was varied from 1.5 to 2.5. Mortar samples were produced using three binder combinations: 1) GBS as the only binder; 2) blended binder with a slag-to-fly ash ratio of 3:1; and 3) mixed binder with 1:1 ratio of slag to fly ash. Mortar samples were mixed and cured at (22 ± 2) °C till the day of the test. The impact of activator solution alkalinity, activator ratio Na₂SiO₃/NaOH, GBS content on the rate of water absorption were evaluated. After 7, 28, and 90 d of immersion in a 10% sulfuric acid solution, the resistance of a geopolymer matrix to degradation was assessed by measuring the change in sample weight. The influence of solution alkalinity and relative fly ash content on setting times was investigated. Alkali-activated mortar with a slag-to-fly ash ratio of 3:1 had the least sorptivity compared to the two other binder combinations, at each curing age, and for mortars made with each of the NaOH alkaline activator concentrations. Mortar sorptivity decreased with age and sodium hydroxide concentrations, suggesting the production of geopolymerization products. No reduction in weight of sample occurred after immersion in the strong acid H₂SO₄ solution for three months, regardless of binder combination. This was due to the synthesis of hydration and geopolymerization products in the presence of curing water, which outweighed the degradation of the geopolymer matrix caused by sulfuric acid.

进行了实验评估，以确定具有碱活化磨碎粒状高炉矿渣 (GBS) 粘合剂以及飞灰和 GBS 粘合剂组合的砂浆的吸水性、凝结时间和对高酸性环境的抵抗力。使用NaOH和Na ₂ SiO ₃溶液的混合物活化粘合剂。混合物中NaOH的摩尔浓度范围为10 mol·L ^-1至16 mol·L ^-1，Na ₂ SiO ₃/NaOH 比率从 1.5 变化到 2.5。使用三种粘合剂组合生产砂浆样品： 1) GBS 作为唯一的粘合剂；2) 矿渣粉煤灰比为3:1的混合粘结剂；3)矿渣与粉煤灰比例为1:1的混合粘结剂。砂浆样品在 (22 ± 2) °C 下混合并固化，直至测试当天。活化剂溶液碱度、活化剂配比 Na ₂ SiO _3的影响/NaOH、GBS含量对吸水率的影响进行了评价。在 10% 的硫酸溶液中浸泡 7、28 和 90 天后，通过测量样品重量的变化来评估地质聚合物基质的抗降解性。研究了溶液碱度和相对飞灰含量对凝固时间的影响。与其他两种粘合剂组合相比，在每个固化年龄以及用每种 NaOH 碱性活化剂浓度制成的砂浆中，具有 3:1 的矿渣与粉煤灰比的碱活化砂浆的吸附性最低。砂浆的吸附性随着年龄和氢氧化钠浓度的增加而降低，表明产生了地质聚合产物。浸入强酸H ₂ SO _{4后样品重量没有减少}解决方案三个月，无论粘合剂组合。这是由于在固化水存在下水合和地质聚合产物的合成，这超过了硫酸引起的地质聚合物基质的降解。