梯度酸溶法研究鉴别地聚合物与水泥水化产物

Gradient acid dissolve test study and identification on geopolymer and cement hydrated products

摘要:

采用梯度酸溶解试验方法来定量区分地聚合物与普通水化产物，结合产物溶解率与残渣微观分析验证了该方法的可行性。研究结果表明，地聚合物与普通水化产物在梯度酸中的酸溶性存在较大差异，区分地聚合物与普通水化产物的酸临界点为pH=3，梯度酸溶解试验能较好地区分两者，为深入分析地聚合物体系的主要产物的化学组成及结构，以及各组分在聚合过程中的作用机理提供了理论基础和依据。

Abstract:

Gradient acid dissolve tests were used to divide geopolymer and hydration product quantificationally. The feasibility of gradient acid dissolve test was investigated through dissolution rates of geopolymer/hydration product and XRD, FT-IR analyses. The results show the behaviors of dissolution between geopolymer and hydration product in the same gradient acid are different, the acid point to divide geopolymer and hydration product is pH=3. The gradient acid dissolve test is an effective method to divide geopolymer and hydration product. It will lay a theoretical basis for further mechanism research on the chemical composition and structure of the main products and on the role of each composition in the geopolymeric system.