Effect of biomass fly ashes as road stabilisation binder

The purpose of the research was to study the usability of two biomass fly ashes as road stabilisation binders. Partial least square structural equation modelling was used as an analytical method. The analysis was based on chemical composition data on SiO 2 , Fe 2 O 3 , Al 2 O 3 and CaO in binder com...

Full description

Saved in:
Bibliographic Details
Published inRoad materials and pavement design Vol. 19; no. 1; pp. 239 - 251
Main Authors Sarkkinen, Minna, Kujala, Kauko, Kemppainen, Kimmo, Gehör, Seppo
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 02.01.2018
Lavoisier
Subjects
Aluminum oxide
Biomass
biomass fly ash
Compressive strength
Fly ash
low-grade road
Moisture content
Silicon dioxide
Soil stabilization
stabilisation
Online AccessGet full text

Cover

More Information
Summary:The purpose of the research was to study the usability of two biomass fly ashes as road stabilisation binders. Partial least square structural equation modelling was used as an analytical method. The analysis was based on chemical composition data on SiO 2 , Fe 2 O 3 , Al 2 O 3 and CaO in binder component, compressive strength results (7d and 28d), water to binder ratio, biomass fly ash content in binder, density of the stabilised material and binder to soil ratio as reflective indicators. According to the study, the higher relative biomass fly ash content had a positive relationship with total binder characteristics but indicated reduced strength properties in the stabilised materials. Also SiO 2 , Fe 2 O 3 , Al 2 O 3 and CaO in binder component and binder to soil ratio had a positive effect on strength properties. However, the effect of biomass fly ash content on water demand, and the relationship between water content and strength were not statistically significant in the model.
ISSN:1468-0629
2164-7402
DOI:10.1080/14680629.2016.1235508