化学组成中含有Na,K的含碱矿物,如各种长石、云母等,普遍存在于混凝土集料中.作为地质演变的主要证据,这些含碱矿物在酸性、中性以及弱碱性条件下的分解析碱反应得到了证实.但是处于水泥混凝土中的强碱性复杂环境下,集料中含碱矿物是否能够分解并析出大量的碱,是否由此而导致混凝土碱-集料反应(alkali-aggregate reaction,AAR)破坏的加剧一直以来成为混凝土碱集料反应研究中的一个悬而未决的问题.针对此问题进行了大量的研究,但至今并未得到统一的认识.本文对混凝土中含碱矿物的碱析出的研究进行了评述,指出了现有研究存在的不足,并对今后的研究方向提出了意见.
参考文献
| [1] | 邓敏;唐明述;兰祥辉.国外关于混凝土碱含量限定的规范与我国应采取的措施[J].混凝土与水泥制品,1994:8-14. |
| [2] | Van Aardt J H P;Visser S .Calcium hydroxide attack on feldspars and clays:possible relevance to cement-aggregate reactions[J].Cement and Concrete Research,1977,7(06):643-648. |
| [3] | Stark D.Alkali-aggregate reactivity in the Rocky Mountain region[A].Purdue,USA,1978:235-244. |
| [4] | Grattan-Bellew P E;Beaudouin J J .Effect of phlogopite mica on alkali-aggregate expansion in concrete[J].Cement and Concrete Research,1980,10(06):789-797. |
| [5] | Kawamura M;Koike M;Nakano K.Release of alkalis from reactive andesitic aggregates and fly ashes into pore solution in mortars[A].Kyoto,Japan,1989:271-278. |
| [6] | Gillott J E;Rogers C A .Alkali-aggregate reaction and internal release of alkalis[J].Magazine of Concrete Research,1994,46(167):99-112. |
| [7] | J. E. Gillott;C. A. Rogers .The behavior of silicocarbonatite aggregates from the Montreal area[J].Cement and Concrete Research,2003(4):471-480. |
| [8] | Durand B.A note about alkali contribution from aggregates in concrete affected by ASR[A].Québec City,Canada,2000:169-177. |
| [9] | St John D A;Goguel R L.Pore solution/aggregate of alkalies in hardened concrete[A].London,UK,1992:894-901. |
| [10] | Goguel R .Alkali release by volcanic aggregates in concrete[J].Cement and Concrete Research,1995,25(04):841-852. |
| [11] | Goguel R;Milestone N B.Alkali release from basalts and alkalinity of pore solution in mortar[A].Québec City,Canada,2000:179-188. |
| [12] | Daniel Constantiner;Sidney Diamond .Alkali release from feldspars into pore solutions[J].Cement and Concrete Research,2003(4):549-554. |
| [13] | Bérubé M A;Dorion J F;Rivest M.Distribution of alkalies in concrete structures affected by ASR and contribution by aggregates[A].Québec City,Canada,2000:139-148. |
| [14] | Marc-Andre Berube;J. Duchesne;J.F. Dorion .Laboratory assessment of alkali contribution by aggregates to concrete and application to concrete structures affected by alkali-silica reactivity[J].Cement and Concrete Research,2002(8):1215-1227. |
| [15] | Shayan A.Alkali-aggregate reaction and basalt aggregate[A].北京,2004:1130-1135. |
| [16] | Bérubé M A;Fournier B.Alkali releasable by aggregates in concrete-significance and test methods[A].北京,2004:1130-1135. |
| [17] | 卢都友;许仲梓;吕忆农.集料ASR碱活性检测方法评述[J].南京化工大学学报（自然科学版）,1998(02):86-92. |
| [18] | RILEM Recommended Test Method.TC 191-ARP(AAR-8):-2004.Determination of Alkalis Releasable by Aggregates in Concrete[S]. |
| [19] | Bérubé M A;Duchesne J;Dorion J F et al.Laboratory assessment of alkali contribution by aggregate to concrete and application to concrete structures affected by alkali-silica reactivity[J].Cement and Concrete Research,2004,34(05):901. |
| [20] | Wang Yujiang;Mo Liwu;Deng Min.Thermodynamic analysis on decomposition of feldspar mineral under alkali condition[A].北京,2004:211-220. |
| [21] | 马鸿文.工业矿物与岩石[M].北京:地质出版社,2002:8. |
| [22] | Xu H.;van Deventer JSJ. .The effect of alkali metals on the formation of geopolymeric gels from alkali-feldspars[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2003(1/3):27-44. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%