Scholarlink

The first section of the Semarang - Demak Toll Road aims to enhance connectivity between Semarang and Demak cities, while also acting as flood barrier. Given the soft soil conditions and the integration of the toll road with the sea wall structure, meticulous planning was required. This study involved assessing the California Bearing Ratio (CBR) values of the subgrade to determine the most effective mixture for rigid pavement modelling. The goal was to achieve a design life that meets specified requirements. The preferred mixture, consisting of 3% rice husk ash (RHA), 6% lime, and 30% sea sand, was identified for its cost-effectiveness compared to other alternatives. Cost analysis indicated significant savings, with the base data being the most economical. Specifically, the addition of 30% sea sand resulted in a 181.45% cost increase compared to the base data, while the addition of 3% RHA and 6% lime led to a 100.08% increase. The cost difference between the mixture of 3% RHA and 6% lime and 30% sea sand was 40.76%. This study highlights the balance between performance improvements and cost efficiency in selecting subgrade materials for rigid pavement construction.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Analysis of the Use of Organic Materials as Subgrade Layer of Rigid Pavement (Case Study: Semarang – Demak Toll Road Section 1)

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Eva Widiastuti,
  • Adelia Dwidarma Nataadmadja

摘要

The first section of the Semarang - Demak Toll Road aims to enhance connectivity between Semarang and Demak cities, while also acting as flood barrier. Given the soft soil conditions and the integration of the toll road with the sea wall structure, meticulous planning was required. This study involved assessing the California Bearing Ratio (CBR) values of the subgrade to determine the most effective mixture for rigid pavement modelling. The goal was to achieve a design life that meets specified requirements. The preferred mixture, consisting of 3% rice husk ash (RHA), 6% lime, and 30% sea sand, was identified for its cost-effectiveness compared to other alternatives. Cost analysis indicated significant savings, with the base data being the most economical. Specifically, the addition of 30% sea sand resulted in a 181.45% cost increase compared to the base data, while the addition of 3% RHA and 6% lime led to a 100.08% increase. The cost difference between the mixture of 3% RHA and 6% lime and 30% sea sand was 40.76%. This study highlights the balance between performance improvements and cost efficiency in selecting subgrade materials for rigid pavement construction.