纖維水泥土作為路基填料的力學(xué)性能(英文)
發(fā)布時間:2023-04-20 03:11
污染土的處理是巖土工程和環(huán)境工程中的一個關(guān)鍵問題。本研究提出采用適當(dāng)?shù)木郾├w維及水泥作為處理重金屬污染土壤的有效方法。研究了纖維含量、纖維長度、水泥含量、養(yǎng)護時間、重金屬種類和濃度對土壤力學(xué)性質(zhì)的影響。為此,本研究進行了一系列的直剪試驗、無側(cè)限抗壓強度試驗、干濕循環(huán)試驗和凍融循環(huán)試驗。試驗結(jié)果表明,聚丙烯纖維和水泥的適當(dāng)配筋是回收重金屬污染土壤作為路基替代填料的有效途徑,具有良好的環(huán)境效益和經(jīng)濟效益。
【文章頁數(shù)】:14 頁
【文章目錄】:
1 Introduction
2 Materials and experiments
2.1 Materials
2.2 Specimens preparations
2.3 Unconfined compressive strength test
2.4 Direct shear test
2.5 Dry-wet cycle and freeze-thaw cycle tests
3 Results and discussion
3.1 Effect of polypropylene fiber content
3.2 Effect of polypropylene fiber length
3.3 Effect of cement content
3.4 Effect of cement curing time
3.5 Effect of heavy meatal ion concentration
3.6 Effect of heavy meatal types
3.7 Influences of dry-wet cycles and freeze-thaw cycles
4 Conclusions
本文編號:3794770
【文章頁數(shù)】:14 頁
【文章目錄】:
1 Introduction
2 Materials and experiments
2.1 Materials
2.2 Specimens preparations
2.3 Unconfined compressive strength test
2.4 Direct shear test
2.5 Dry-wet cycle and freeze-thaw cycle tests
3 Results and discussion
3.1 Effect of polypropylene fiber content
3.2 Effect of polypropylene fiber length
3.3 Effect of cement content
3.4 Effect of cement curing time
3.5 Effect of heavy meatal ion concentration
3.6 Effect of heavy meatal types
3.7 Influences of dry-wet cycles and freeze-thaw cycles
4 Conclusions
本文編號:3794770
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