Borosilicate waste glass degradation models must quantify the effects of the solution composition on the dissolution rate. Here, we present results of modified ASTM C1285 tests conducted at 90 °C with AFCI and LRM glasses to determine whether dependencies of dissolution rates on the pH, Al, and Si concentrations must be included. Solution compositions were modified from those generated by glass dissolution alone by adding small amounts of K₄SiO₄ glass, Al(OH)₃•2H₂O, and a concentrated NaOH solution when the tests were initiated. Results show rate laws for the initial and resumption regimes must include pH dependences, but the residual rate can be modeled independent of the pH, Al, and Si concentrations. Triggering the resumption rate probably depends on the pH, Si, and Al concentrations and perhaps other aspects of the glass composition. A waste glass degradation model using is being parameterized using tests with a range of waste glass compositions to quantify these dependencies.

硼硅酸盐废玻璃降解模型必须量化溶液组成对溶解速率的影响。在这里，我们介绍了在90°C下用AFCI和LRM玻璃进行的修改后的ASTM C1285测试的结果，以确定是否必须包括溶解速率对pH，Al和Si浓度的依赖性。通过添加少量的K ₄ SiO ₄玻璃，Al（OH）₃ •2H ₂将溶液组成从仅玻璃溶解产生的溶液中进行修饰测试开始时为O和浓NaOH溶液。结果表明，初始和恢复方案的速率定律必须包括pH依赖性，但是可以对残留速率进行建模，而不受pH，Al和Si浓度的影响。触发恢复速率可能取决于pH值，Si和Al的浓度以及玻璃成分的其他方面。正在通过使用一系列废玻璃成分的测试对使用的废玻璃降解模型进行参数化，以量化这些依赖性。