Table 3 UCS threshold of cement-stabilised soil as road material according to various standards
From: Evaluation of cement stabilised residual soil on macro- and micro-scale for road construction
No | Type of structure | Parameter | Standard | Reference |
|---|---|---|---|---|
1 | Sub-base coarse | 7-day UCS (0.75–1.5 MPa) | India | [85] |
2 | Low traffic volume road | 7-day UCS (0.8 MPa) | Malaysia | [86] |
3 | Road base | 7-day UCS (>1.8 MPa) | France | [45] |
3a | Road sub-base | 7-day UCS (>1.2 MPa) | ||
4 | Medium-high traffic volume road | 7-day UCS (2.068–5.516 MPa) | Portland Cement Association (PCA) | [87] |
5 | Subbase and subgrade | 7-day UCS (1.72 MPa) | AASHTO | [88] |
5a | Base | 7-day UCS (5.17 MPa) | ||
6 | Base in cold regions | UCS (4.1 MPa) | Federal Highway Administration (FHWA) | [89] |
6a | Subgrade | 7-day UCS (1.4 MPa) | ||
7 | Bound pavement materials | 28-day curing and 4 h submerging into water before testing UCS (2 MPa) The stabilisers must be >3% | Australia | [90] |
8 | High-speed railway roadbed | 5% Cement was proved to be adequate to control frost-heaving | China | [91] |