Influence of cold curing temperature and freeze–thaw on the UCS of stabilised silty sand

Document identifier: oai:DiVA.org:ltu-77435
Access full text here:10.1680/jgrim.18.00121
Keyword: Engineering and Technology, Civil Engineering, Geotechnical Engineering, Teknik och teknologier, Samhällsbyggnadsteknik, Geoteknik, Natural resources, Strength and testing of materials, Thermal effects, Soil Mechanics
Relevant Sustainable Development Goals (SDGs):

The SDG label(s) above have been assigned by OSDG.ai

Abstract:

Fine-grained soils are often not suitable as subsoil for roads or railways or other large-scale constructions due to their sensitivity to settlements as well as their frost susceptibility. The engineering properties as well as the frost durability of such soils can be improved by stabilising it with hydraulic binders. Stabilisation is quite often used in countries with moderate climate, but seldom in cold climate. This publication presents a laboratory study of a Swedish silty sand stabilised with Multicem, a cement type containing 50% cement kiln dust. The unconfined compressive strength (UCS) was used as a measure of strength. The study investigates different binder contents and different curing times. The UCS was measured before and after 12 freeze–thaw cycles as well as after a subsequent curing time (28 d). The curing conditions were adapted to conditions as given in northern countries – that is, +4°C. The results show that the strength gained by stabilisation is sufficient even at this cold curing temperature. The strength after the freeze–thaw cycles is still significant higher than without stabilisation. The recovering time after the freeze–thaw cycles may allow a continued curing, which is indicated by a higher strength. This remaining strength should become subject for further investigation.

Authors

Mirja Rothhämel

Luleå tekniska universitet; Geoteknologi
Other publications >>

Jan Laue

Luleå tekniska universitet; Geoteknologi
Other publications >>

Record metadata

Click to view metadata

	
    header: 
        identifier: oai:DiVA.org:ltu-77435
        datestamp: 2021-04-22T23:03:22Z
        setSpec: SwePub-ltu
    metadata: 
        mods: 
            @attributes: 
                version: 3.7
            recordInfo: 
                recordContentSource: ltu
                recordCreationDate: 2020-01-16
            identifier: 
                http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-77435
                10.1680/jgrim.18.00121
            titleInfo: 
                @attributes: 
                    lang: eng
                title: Influence of cold curing temperature and freeze–thaw on the UCS of stabilised silty sand
            abstract: 
Fine-grained soils are often not suitable as subsoil for roads or railways or other large-scale constructions due to their sensitivity to settlements as well as their frost susceptibility. The engineering properties as well as the frost durability of such soils can be improved by stabilising it with hydraulic binders. Stabilisation is quite often used in countries with moderate climate but seldom in cold climate. This publication presents a laboratory study of a Swedish silty sand stabilised with Multicem a cement type containing 50% cement kiln dust. The unconfined compressive strength (UCS) was used as a measure of strength. The study investigates different binder contents and different curing times. The UCS was measured before and after 12 freeze–thaw cycles as well as after a subsequent curing time (28 d). The curing conditions were adapted to conditions as given in northern countries – that is +4°C. The results show that the strength gained by stabilisation is sufficient even at this cold curing temperature. The strength after the freeze–thaw cycles is still significant higher than without stabilisation. The recovering time after the freeze–thaw cycles may allow a continued curing which is indicated by a higher strength. This remaining strength should become subject for further investigation.

            subject: 
                    @attributes: 
                        lang: eng
                        authority: uka.se
                    topic: 
                        Engineering and Technology
                        Civil Engineering
                        Geotechnical Engineering
                    @attributes: 
                        lang: swe
                        authority: uka.se
                    topic: 
                        Teknik och teknologier
                        Samhällsbyggnadsteknik
                        Geoteknik
                    @attributes: 
                        lang: eng
                    topic: natural resources
                    @attributes: 
                        lang: eng
                    topic: strength and testing of materials
                    @attributes: 
                        lang: eng
                    topic: thermal effects
                    @attributes: 
                        lang: swe
                        authority: ltu
                    topic: Geoteknik
                    genre: Research subject
                    @attributes: 
                        lang: eng
                        authority: ltu
                    topic: Soil Mechanics
                    genre: Research subject
            language: 
                languageTerm: eng
            genre: 
                publication/journal-article
                ref
            note: 
                Epub ahead of print/Online first
                2
            name: 
                    @attributes: 
                        type: personal
                        authority: ltu
                    namePart: 
                        Rothhämel
                        Mirja
                    role: 
                        roleTerm: aut
                    affiliation: 
                        Luleå tekniska universitet
                        Geoteknologi
                    nameIdentifier: mirrot
                    @attributes: 
                        type: personal
                        authority: ltu
                    namePart: 
                        Laue
                        Jan
                    role: 
                        roleTerm: aut
                    affiliation: 
                        Luleå tekniska universitet
                        Geoteknologi
                    nameIdentifier: 
                        janlau
                        0000-0003-1935-1743
            relatedItem: 
                    @attributes: 
                        type: host
                    genre: grantAgreement
                    name: 
                        @attributes: 
                            type: corporate
                        namePart: Forskningsrådet Formas
                        role: 
                            roleTerm: fnd
                    @attributes: 
                        type: host
                    genre: grantAgreement
                    name: 
                        @attributes: 
                            type: corporate
                        namePart: Trafikverket
                        role: 
                            roleTerm: fnd
                    @attributes: 
                        type: host
                    titleInfo: 
                        title: Proceedings of the Institution of Civil Engineers - Ground Improvement
                    identifier: 
                        1755-0750
                        1755-0769
            originInfo: 
            location: 
                url: http://www.icevirtuallibrary.com/toc/jgrim/0/0
            physicalDescription: 
                form: print
            typeOfResource: text