Lejè aditif konkrè | Ajan kimen wo-pèfòmans pou konkrè selilè
Anpil estrikti modèn yo bati ak izolasyon, pou egzanp izole fòm konkrè (ICF yo), mi konkrè kim, ak nwayo-izole miray doub. mi konkrè kim se yon altènatif pri efikas ak enèji efikas nan metòd konstriksyon tradisyonèl yo. Yo bay yon gwo valè izolasyon tèmik, epi yo gen bon pwopriyete amortissement kont bri eksteryè. mi konkrè kim kontribye tou nan yon estrikti bilding ki pi solid, ki ka reziste chaj van pi fò.
ICF yo konpoze de blòk styrofoam, tankou Lego, ki mete ansanm ak plen ak beton. Yo se yon gwo altènatif pou ankadreman bwa, epi li ka sove jiska 40% nan depans materyèl konpare ak sistèm tradisyonèl miray ankadreman. Yo ede tou kontwole tanperati andedan kay la, siyifikativman redwi depans enèji yo, epi diminye son deyò yo.
The concrete on-site 3D-printing concept developed by Technische Universitat Dresden (CONPrint3D) allows the direct production of formwork-free load-bearing mi konkrè kim. These walls can be printed with foam concrete and with an additional insulation layer. Anplis, the CONPrint3D method provides a high degree of automation and can be used in large quantities.
The aim of this study is to determine whether foam concrete, which is produced using the CONPrint3D method, possesses the strength needed for use in load-bearing walls. Pou rezon sa a, foam concrete samples with different mixture compositions were extruded and tested for compressive and flexural strength. A scanning electron microscope (EGZANP) was used to investigate the pore structure of the foam concretes. It was found that the foam concretes possessed shape stability, ak fòs konpresiv ak flexural yo te konparab ak sa yo ki konvansyonèl jete kim konkrè. Estrikti pò nan konkrè kim yo konsiste de porositë jèl ak porositë kapilè, osi byen ke antrenn ak antrap vid lè.