Exposing concretestructurestohighte

Exposing concretestructurestohightemperatures(above
200 1C) fromaccidentalfireorelevatedtemperaturesfrom
industrial plantsproducehighinternaltensilestressesthatcause
crackinganddamageofconcretestructures.Thecompressive
strengthofconcretedecreasessignificantlyuponexposingto
elevatedtemperatures.Therefore,theresidualcompressive
strength(RCS)isanimportantfactortoassessthestrengthof
concreteafterexposedtoaccidentalfire.Itisvitaltohaveahigh
RCSofconcreteexposedtofiretopreservetheintegrityofthe
whole concretestructure.Manyfeaturesaffecttheperformanceof
concretetoelevatedtemperaturessuchasmixproportions,curing
period, aggregatetype,andpresenceofsupplementarycementing
materials.
The useofsupplementarycementingmaterialssuchassilica
fume, flyash,andblast-furnaceslaginconcretemixtureshad
been observedanefficienttechniquetoimprovethestrengthand
propertiesofconcretematerial.Manyresearchstudiesarefound
in theliteraturepertainingtheinfluenceofsupplementary
cementing materialsontheresistanceofconcretetoelevated
temperatures.Theresistanceofconcreteincorporatedultra-fine
cementing materialssuchassilicafumeandmetakaolinto
elevatedtemperatureswerefoundlowercomparedtocontrol
concrete [1–5].
The useofvolcanicashandflyashinconcretemixeswas
reportedtoenhancetheperformanceofconcretetoelevated
temperatures(especiallybelow500 1C) comparedtocontrol
concrete [6–11].
Manyrelativelynewsupplementarycementingmaterialssuch
as ricehuskash,wheatstrawash,andtirerubberashwere
utilized inconcretemixturesthatincreasedtheperformanceand
strengthofconcretematerial [12–18].
Olivewasteash(OWA)isanewsupplementarycementing
materialthatisacquiredbyincineratinghugeamountsofolive
mill wasteandcollectingtheresultingash.Theolivemillwaste
materialsarethematerialsthatleftaftertheoliveoilhadbeen
extractedfromtheolivefruitsandcontainsolivepulp,husk,and
residualoil.However,noresearchstudiesarereportedinthe
literatureconcerningtheeffectofOWAontheresistanceof
concretetoelevatedtemperatures.
The mainobjectiveofthisstudyistoinvestigatetheinfluence
of OWAontheperformanceofconcretetoelevatedtemperatures
under differentexperimentalparametersincluding:OWAcontent
(0%, 7%,15%,and22%),aggregatetype(crushedbasaltand
volcanictuff),w/cratio(0.5and0.7),andairentrainment(non-
air entrainedandairentrained).

ผลลัพธ์ (ไทย) 1:

เปิดเผย (ข้างบน concretestructurestohightemperatures1 c 200) fromaccidentalfireorelevatedtemperaturesfromplantsproducehighinternaltensilestressesthatcause อุตสาหกรรมcrackinganddamageofconcretestructures Thecompressivestrengthofconcretedecreasessignificantlyuponexposingtoelevatedtemperatures ดังนั้น theresidualcompressiveความแข็งแรง (RCS) isanimportantfactortoassessthestrengthofconcreteafterexposedtoaccidentalfire ItisvitaltohaveahighRCSofconcreteexposedtofiretopreservetheintegrityoftheconcretestructure ทั้งหมด Manyfeaturesaffecttheperformanceofconcretetoelevatedtemperaturessuchasmixproportions บ่มระยะเวลา aggregatetype, andpresenceofsupplementarycementingวัสดุUseofsupplementarycementingmaterialssuchassilica การควัน ลิกไนต์ andblast-furnaceslaginconcretemixtureshadรับ observedanefficienttechniquetoimprovethestrengthandpropertiesofconcretematerial Manyresearchstudiesarefoundใน theliteraturepertainingtheinfluenceofsupplementaryคาด materialsontheresistanceofconcretetoelevatedอุณหภูมิ Theresistanceofconcreteincorporatedultra-ดีคาด materialssuchassilicafumeandmetakaolintoelevatedtemperatureswerefoundlowercomparedtocontrolคอนกรีต [1-5]Useofvolcanicashandflyashinconcretemixeswas การreportedtoenhancetheperformanceofconcretetoelevatedtemperatures(especiallybelow500 1C) comparedtocontrolคอนกรีต [6-11]Manyrelativelynewsupplementarycementingmaterialssuchricehuskash, wheatstrawash, andtirerubberashwereใช้ inconcretemixturesthatincreasedtheperformanceandstrengthofconcretematerial [12-18]Isanewsupplementarycementing Olivewasteash (OWA)materialthatisacquiredbyincineratinghugeamountsofoliveโรงงาน wasteandcollectingtheresultingash Theolivemillwastematerialsarethematerialsthatleftaftertheoliveoilhadbeenextractedfromtheolivefruitsandcontainsolivepulp แกลบ และresidualoil อย่างไรก็ตาม noresearchstudiesarereportedintheliteratureconcerningtheeffectofOWAontheresistanceofconcretetoelevatedtemperaturesMainobjectiveofthisstudyistoinvestigatetheinfluence การของ OWAontheperformanceofconcretetoelevatedtemperaturesภายใต้ differentexperimentalparametersincluding:OWAcontent(0%, 7%, 15%, and22%), aggregatetype (crushedbasaltandvolcanictuff), w/cratio (0.5and0.7) andairentrainment(non-เครื่อง entrainedandairentrained)

ผลลัพธ์ (ไทย) 2:

เปิดเผย concretestructurestohightemperatures (เหนือ
200 1C) fromaccidentalfireorelevatedtemperaturesfrom
plantsproducehighinternaltensilestressesthatcause อุตสาหกรรม
crackinganddamageofconcretestructures.Thecompressive
strengthofconcretedecreasessignificantlyuponexposingto
elevatedtemperatures.Therefore, theresidualcompressive
แข็งแรง (RCS) isanimportantfactortoassessthestrengthof
concreteafterexposedtoaccidentalfire.Itisvitaltohaveahigh
RCSofconcreteexposedtofiretopreservetheintegrityofthe
concretestructure.Manyfeaturesaffecttheperformanceof ทั้ง
concretetoelevatedtemperaturessuchasmixproportions บ่ม
ระยะเวลา aggregatetype, andpresenceofsupplementarycementing
วัสดุ.
useofsupplementarycementingmaterialssuchassilica
ควัน, Flyash, andblast- furnaceslaginconcretemixtureshad
รับ observedanefficienttechniquetoimprovethestrengthand
propertiesofconcretematerial.Manyresearchstudiesarefound
ใน theliteraturepertainingtheinfluenceofsupplementary
ประสาน materialsontheresistanceofconcretetoelevated
temperatures.Theresistanceofconcreteincorporatedultra ปรับ
ประสาน materialssuchassilicafumeandmetakaolinto
elevatedtemperatureswerefoundlowercomparedtocontrol
คอนกรีต [1-5].
useofvolcanicashandflyashinconcretemixeswas
reportedtoenhancetheperformanceofconcretetoelevated
อุณหภูมิ (especiallybelow500 1C) comparedtocontrol
คอนกรีต [6-11].
Manyrelativelynewsupplementarycementingmaterialssuch
เป็น ricehuskash, wheatstrawash, andtirerubberashwere
ใช้ inconcretemixturesthatincreasedtheperformanceand
. strengthofconcretematerial [12-18]
Olivewasteash (OWA) isanewsupplementarycementing
materialthatisacquiredbyincineratinghugeamountsofolive
โรงงาน wasteandcollectingtheresultingash.Theolivemillwaste
materialsarethematerialsthatleftaftertheoliveoilhadbeen
extractedfromtheolivefruitsandcontainsolivepulp แกลบและ
residualoil.However, noresearchstudiesarereportedinthe
literatureconcerningtheeffectofOWAontheresistanceof
concretetoelevatedtemperatures.
mainobjectiveofthisstudyistoinvestigatetheinfluence
ของ OWAontheperformanceofconcretetoelevatedtemperatures
ภายใต้ differentexperimentalparametersincluding: OWAcontent
(0%, 7%, 15%, and22 %) aggregatetype (crushedbasaltand
volcanictuff) w / cratio (0.5and0.7) andairentrainment (ไม่ใช่
อากาศ entrainedandairentrained)