PROPERTIES OF LOW-PH CEMENT GROUT AS A SEALING MATERIAL FOR THE GEOLOGICAL DISPOSAL OF RADIOACTIVE WASTE

被引：12

作者：

Kim, Jin-Seop ^{[1
]}

Kwon, S. ^{[1
]}

Choi, Jong-Won ^{[1
]}

Cho, Gye-Chun ^{[2
]}

机构：

[1] Korea Atom Energy Res Inst, Taejon 305353, South Korea

[2] Korea Adv Inst Sci & Technol, Taejon 305701, South Korea

来源：

NUCLEAR ENGINEERING AND TECHNOLOGY | 2011年 / 43卷 / 05期

关键词：

Low-pH Cement Grout; Silica Fume; Radioactive Waste Disposal; Compressive Strength; Dynamic Shear Modulus; Hydraulic Conductivity; PORE SOLUTION EXPRESSION; CONCRETE; MORTARS;

D O I：

10.5516/NET.2011.43.5.459

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The current solution to the problem of using cementitious material for sealing purposes in a final radioactive waste repository is to develop a low-pH cement grout. In this study, the material properties of a low-pH cement grout based on a recipe used at ONKALO are investigated by considering such factors as pH variation, compressive strength, dynamic modulus, and hydraulic conductivity by using silica fume and micro-cement. From the pH measurements of the hardened cement grout, the required pH (< pH 11) is obtained after 130 days of curing. Although the engineering properties of the low-pH cement grout used in this study are inferior to those of conventional high-pH cement grout, the utilization of silica fume and micro-cement effectively meets the long-term environmental and durability requirements for cement grout in a radioactive waste repository.

引用

页码：459 / 468

页数：10

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