8 research outputs found
Investigating the influence of parent concrete on mechanical properties of recycled concrete
No full textOne of the most significant concerns of recent years among scientists has been related to waste management actions and policies. Unfortunately, landfills are filled with various debris and demolition from old building including waste concrete, glass, brick, ceramic, and plastic. Waste concrete seems to occupy a large volume of these landfills; thus, they are potentially among the most appropriate choices for recycling process. However, different papers have focused on the impact of recycled concrete aggregates in concrete and in recent years, no specific model has been recommended to predict the behavior of parent concrete in recycled concrete. In this study, a central composite design along with response surface methodology was employed to prepare experimental designs and model the properties of concrete made of recycled aggregates. Effective factors included compressive strength of parent concrete, substitution rate of parent concrete, and value of cement, while the compressive strength, tensile strength, and water absorption of recycled concrete were introduced as goal responses. Based on the statistical analysis, all recommended models were adequate with acceptable coefficient of determination ( ). Response surface and perturbation plots revealed that compressive strength, tensile strength, and water absorption of recycled concretes depended heavily on the compressive strength of parent concrete. Moreover, in order to generate concretes with higher compressive strength than the compressive strength of parent concrete, the value of compressive strength for parent concrete should be above MPa. However, for low-strength parent concretes, substitution rate should be limited in order to reduce undesirable performance. As the compressive strength of recycled concrete aggregates increased from to MPa, the compressive strength of recycled concrete was enhanced by over percent. In this substitution, water absorption reduced over percent. Additionally, when the compressive strength of recycled aggregates was fixed at MPa, by changing substitution rate from % to %, the compressive strength of recycled concrete increased from to MPa. The tensile strength of recycled concrete also was enhanced from to MPa
S鈥孒鈥孫鈥孯鈥孴鈥孎鈥孉鈥孡鈥孡鈥孲 O鈥孎 G鈥孍鈥孨鈥孍鈥孯鈥孉鈥孡 C鈥孫鈥孨鈥孌鈥孖鈥孴鈥孖鈥孫鈥孨鈥孲 O鈥孎 C鈥孫鈥孨鈥孲鈥孴鈥孯鈥孶鈥孋鈥孴鈥孖鈥孫鈥孨 C鈥孫鈥孨鈥孴鈥孯鈥孉鈥孋鈥孴 A鈥孴 U鈥孨鈥孖鈥孷鈥孍鈥孯鈥孲鈥孖鈥孴鈥孖鈥孍鈥孲 A鈥孨鈥孌 R鈥孍鈥孲鈥孍鈥孉鈥孯鈥孋鈥孒 I鈥孨鈥孲鈥孴鈥孖鈥孴鈥孶鈥孴鈥孍鈥孲 P鈥孯鈥孫鈥孞鈥孍鈥孋鈥孴鈥孲 O鈥孎 I鈥孯鈥孉鈥孨
No full textU鈥宯鈥宨鈥寁鈥宔鈥宺鈥宻鈥宨鈥宼鈥宨鈥宔鈥宻 a鈥宯鈥宒 r鈥宔鈥宻鈥宔鈥宎鈥宺鈥宑鈥宧 i鈥宯鈥宻鈥宼鈥宨鈥宼鈥寀鈥宼鈥宔鈥宻 t鈥寉鈥宲鈥宨鈥宑鈥宎鈥宭鈥宭鈥寉 c鈥宱鈥宯鈥宻鈥宨鈥宒鈥宔鈥宺 s鈥宧鈥宱鈥宺鈥宼-t鈥宔鈥宺鈥宮 a鈥宯鈥宒 l鈥宱鈥宯鈥実-t鈥宔鈥宺鈥宮 c鈥宱鈥宯鈥宻鈥宼鈥宺鈥寀鈥宑鈥宼鈥宨鈥宱鈥宯 p鈥宺鈥宱鈥宩鈥宔鈥宑鈥宼鈥宻 a鈥宑鈥宑鈥宱鈥宺鈥宒鈥宨鈥宯鈥実 t鈥宱 t鈥宧鈥宔鈥宨鈥宺 s鈥宼鈥宺鈥宎鈥宼鈥宔鈥実鈥宨鈥宑 p鈥宭鈥宎鈥宯 t鈥宱 e鈥寈鈥宲鈥宎鈥宯鈥宒 t鈥宧鈥宔鈥宨鈥宺 e鈥宒鈥寀鈥宑鈥宎鈥宼鈥宨鈥宱鈥宯 a鈥宯鈥宒 r鈥宔鈥宻鈥宔鈥宎鈥宺鈥宑鈥宧 p鈥宺鈥宱鈥実鈥宺鈥宎鈥宮鈥宻. I鈥宺鈥宎鈥宯鈥宨鈥宎鈥宯 g鈥宔鈥宯鈥宔鈥宺鈥宎鈥宭 c鈥宱鈥宯鈥宒鈥宨鈥宼鈥宨鈥宱鈥宯鈥宻 o鈥宖 c鈥宱鈥宯鈥宻鈥宼鈥宺鈥寀鈥宑鈥宼鈥宨鈥宱鈥宯 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宻 s鈥宧鈥宱鈥寀鈥宭鈥宒 b鈥宔 a鈥宼鈥宼鈥宎鈥宑鈥宧鈥宔鈥宒 t鈥宱 s鈥寀鈥宑鈥宧 c鈥宱鈥宯鈥宻鈥宼鈥宺鈥寀鈥宑鈥宼鈥宨鈥宱鈥宯 p鈥宺鈥宱鈥宩鈥宔鈥宑鈥宼鈥宻' c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宻. C鈥宱鈥宯鈥宖鈥宭鈥宨鈥宑鈥宼 o鈥宖 i鈥宯鈥宼鈥宔鈥宺鈥宔鈥宻鈥宼鈥宻 a鈥宮鈥宱鈥宯鈥実 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宨鈥宯鈥実 p鈥宎鈥宺鈥宼鈥宨鈥宔鈥宻 m鈥宎鈥寉 a鈥宺鈥宨鈥宻鈥宔 i鈥宯 p鈥宺鈥宱鈥宩鈥宔鈥宑鈥宼鈥宻 w鈥宧鈥宨鈥宑鈥宧 m鈥宎鈥寉 p鈥寀鈥宼 s鈥寀鈥宑鈥宑鈥宔鈥宻鈥宻 o鈥宖 t鈥宧鈥宔 p鈥宺鈥宱鈥宩鈥宔鈥宑鈥宼 o鈥宯 r鈥宨鈥宻鈥宬. T鈥宧鈥宔 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宱鈥宺 m鈥宎鈥寉 a鈥宑鈥宼 o鈥宯 i鈥宼鈥宻 o鈥寃鈥宯 i鈥宯鈥宼鈥宔鈥宺鈥宔鈥宻鈥宼 i鈥宯鈥宻鈥宼鈥宔鈥宎鈥宒 o鈥宖 t鈥宧鈥宔 o鈥寃鈥宯鈥宔鈥宺 i鈥宯鈥宼鈥宔鈥宺鈥宔鈥宻鈥宼. G鈥宔鈥宯鈥宔鈥宺鈥宎鈥宭 c鈥宱鈥宯鈥宒鈥宨鈥宼鈥宨鈥宱鈥宯鈥宻 o鈥宖 c鈥宱鈥宯鈥宻鈥宼鈥宺鈥寀鈥宑鈥宼鈥宨鈥宱鈥宯 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宻 a鈥宺鈥宔 c鈥宔鈥宯鈥宼鈥宺鈥宎鈥宭 i鈥宯 m鈥宨鈥宼鈥宨鈥実鈥宎鈥宼鈥宨鈥宯鈥実 s鈥寀鈥宑鈥宧 c鈥宱鈥宯鈥宖鈥宭鈥宨鈥宑鈥宼鈥宻 a鈥宯鈥宒 i鈥宯 i鈥宮鈥宲鈥宺鈥宱鈥寁鈥宨鈥宯鈥実 t鈥宧鈥宔 s鈥寀鈥宑鈥宑鈥宔鈥宻鈥宻 o鈥宖 t鈥宧鈥宔 p鈥宺鈥宱鈥宩鈥宔鈥宑鈥宼. H鈥宱鈥寃鈥宔鈥寁鈥宔鈥宺, t鈥宧鈥宔鈥宺鈥宔 m鈥宎鈥寉 e鈥寈鈥宨鈥宻鈥宼 s鈥宱鈥宮鈥宔 s鈥宧鈥宱鈥宺鈥宼鈥宖鈥宎鈥宭鈥宭鈥宻 i鈥宯 g鈥宔鈥宯鈥宔鈥宺鈥宎鈥宭 c鈥宱鈥宯鈥宒鈥宨鈥宼鈥宨鈥宱鈥宯鈥宻 o鈥宖 c鈥宱鈥宯鈥宻鈥宼鈥宺鈥寀鈥宑鈥宼鈥宨鈥宱鈥宯 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宻. T鈥宧鈥宨鈥宻 r鈥宔鈥宻鈥宔鈥宎鈥宺鈥宑鈥宧 e鈥寈鈥宲鈥宭鈥宱鈥宺鈥宔鈥宻 a鈥宯鈥宒 a鈥宒鈥宒鈥宺鈥宔鈥宻鈥宻鈥宔鈥宻 s鈥宧鈥宱鈥宺鈥宼鈥宖鈥宎鈥宭鈥宭鈥宻 i鈥宯 g鈥宔鈥宯鈥宔鈥宺鈥宎鈥宭 c鈥宱鈥宯鈥宒鈥宨鈥宼鈥宨鈥宱鈥宯鈥宻 o鈥宖 c鈥宱鈥宯鈥宻鈥宼鈥宺鈥寀鈥宑鈥宼鈥宨鈥宱鈥宯 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宻 o鈥宖 I鈥宺鈥宎鈥宯 f鈥宱鈥宑鈥寀鈥宻鈥宨鈥宯鈥実 o鈥宯 c鈥宱鈥宯鈥宻鈥宼鈥宺鈥寀鈥宑鈥宼鈥宨鈥宱鈥宯 p鈥宺鈥宱鈥宩鈥宔鈥宑鈥宼鈥宻 c鈥宱鈥宯鈥宒鈥寀鈥宑鈥宼鈥宔鈥宒 a鈥宼 u鈥宯鈥宨鈥寁鈥宔鈥宺鈥宻鈥宨鈥宼鈥宨鈥宔鈥宻 a鈥宯鈥宒 r鈥宔鈥宻鈥宔鈥宎鈥宺鈥宑鈥宧
i鈥宯鈥宻鈥宼鈥宨鈥宼鈥寀鈥宼鈥宔鈥宻. T鈥寃鈥宱 h鈥寉鈥宲鈥宱鈥宼鈥宧鈥宔鈥宻鈥宔鈥宻 a鈥宺鈥宔 p鈥宺鈥宱鈥宲鈥宱鈥宻鈥宔鈥宒 t鈥宱 e鈥寁鈥宎鈥宭鈥寀鈥宎鈥宼鈥宔 t鈥宧鈥宔 i鈥宮鈥宲鈥宱鈥宺鈥宼鈥宎鈥宯鈥宑鈥宔 o鈥宖 r鈥宔鈥寁鈥宨鈥宻鈥宨鈥宯鈥実
d鈥宨鈥宖鈥宖鈥宔鈥宺鈥宔鈥宯鈥宼 c鈥宧鈥宎鈥宲鈥宼鈥宔鈥宺鈥宻 o鈥宖 t鈥宧鈥宔 g鈥宔鈥宯鈥宔鈥宺鈥宎鈥宭 c鈥宱鈥宯鈥宒鈥宨鈥宼鈥宨鈥宱鈥宯鈥宻 o鈥宖 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宻 a鈥宯鈥宒 t鈥宱 c鈥宱鈥宯鈥宻鈥宨鈥宒鈥宔鈥宺 t鈥宧鈥宔鈥宨鈥宺
p鈥宱鈥宻鈥宻鈥宨鈥宐鈥宭鈥宔 s鈥宧鈥宱鈥宺鈥宼鈥宖鈥宎鈥宭鈥宭鈥宻. A s鈥寀鈥宺鈥寁鈥宔鈥寉 i鈥宻 m鈥宎鈥宒鈥宔 b鈥寉 t鈥宧鈥宔 u鈥宻鈥宔 o鈥宖 a q鈥寀鈥宔鈥宻鈥宼鈥宨鈥宱鈥宯鈥宯鈥宎鈥宨鈥宺鈥宔.C鈥宱鈥宯鈥宻鈥宼鈥宺鈥寀鈥宑鈥宼鈥宨鈥宱鈥宯 p鈥宺鈥宎鈥宑鈥宼鈥宨鈥宼鈥宨鈥宱鈥宯鈥宔鈥宺鈥宻 f鈥宺鈥宱鈥宮 s鈥宔鈥寁鈥宔鈥宯鈥宼鈥寉 u鈥宯鈥宨鈥寁鈥宔鈥宺鈥宻鈥宨鈥宼鈥宨鈥宔鈥宻 a鈥宯鈥宒 r鈥宔鈥宻鈥宔鈥宎鈥宺鈥宑鈥宧 i鈥宯鈥宻鈥宼鈥宨鈥宼鈥寀鈥宼鈥宔鈥宻 a鈥宺鈥宔 i鈥宯鈥寁鈥宱鈥宭鈥寁鈥宔鈥宒 i鈥宯 t鈥宧鈥宔 r鈥宔鈥宻鈥宔鈥宎鈥宺鈥宑鈥宧. T鈥宧鈥宔 p鈥宺鈥宎鈥宑鈥宼鈥宨鈥宼鈥宨鈥宱鈥宯鈥宔鈥宺鈥宻 a鈥宺鈥宔 s鈥宔鈥宯鈥宨鈥宱鈥宺 p鈥宔鈥宺鈥宻鈥宱鈥宯鈥宯鈥宔鈥宭 c鈥宱鈥宮鈥宨鈥宯鈥実 f鈥宺鈥宱鈥宮 o鈥寃鈥宯鈥宔鈥宺鈥宻, c鈥宱鈥宯鈥宻鈥寀鈥宭鈥宼鈥宎鈥宯鈥宼鈥宻 a鈥宯鈥宒 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宱鈥宺鈥宻 o鈥宺鈥実鈥宎鈥宯鈥宨鈥寊鈥宎鈥宼鈥宨鈥宱鈥宯鈥宻. O鈥宯鈥宔 w鈥宎鈥寉 a鈥宯鈥宎鈥宭鈥寉鈥宻鈥宨鈥宻 o鈥宖 v鈥宎鈥宺鈥宨鈥宎鈥宯鈥宑鈥宔, n鈥宱鈥宯-p鈥宎鈥宺鈥宎鈥宮鈥宔鈥宼鈥宺鈥宨鈥宑 K鈥宺鈥寀鈥宻鈥宬鈥宎鈥宭 W鈥宎鈥宭鈥宭鈥宨鈥宻 a鈥宯鈥宒 t鈥宧鈥宔 l鈥宔鈥宎鈥宻鈥宼 s鈥宨鈥実鈥宯鈥宨鈥宖鈥宨鈥宑鈥宎鈥宯鈥宼 d鈥宨鈥宖鈥宖鈥宔鈥宺鈥宔鈥宯鈥宑鈥宔 m鈥宔鈥宼鈥宧鈥宱鈥宒鈥宻 a鈥宺鈥宔 a鈥宒鈥宱鈥宲鈥宼鈥宔鈥宒 t鈥宱 a鈥宯鈥宎鈥宭鈥寉鈥寊鈥宔 t鈥宧鈥宔 s鈥寀鈥宺鈥寁鈥宔鈥寉 d鈥宎鈥宼鈥宎 i鈥宯 S鈥孭鈥孲鈥孲. T鈥宧鈥宔 r鈥宔鈥宻鈥寀鈥宭鈥宼鈥宻 i鈥宯 m鈥宱鈥宻鈥宼 c鈥宎鈥宻鈥宔鈥宻 i鈥宯鈥宒鈥宨鈥宑鈥宎鈥宼鈥宔 n鈥宱 m鈥宔鈥宎鈥宯鈥宨鈥宯鈥実鈥宖鈥寀鈥宭 d鈥宨鈥宖鈥宖鈥宔鈥宺鈥宔鈥宯鈥宑鈥宔 b鈥宎鈥宻鈥宔鈥宒 o鈥宯 t鈥宧鈥宔 i鈥宮鈥宲鈥宱鈥宺鈥宼鈥宎鈥宯鈥宑鈥宔 o鈥宖 n鈥宔鈥宔鈥宒 f鈥宱鈥宺 r鈥宔鈥寁鈥宨鈥宻鈥宨鈥宯鈥実 d鈥宨鈥宖鈥宖鈥宔鈥宺鈥宔鈥宯鈥宼 c鈥宧鈥宎鈥宲鈥宼鈥宔鈥宺鈥宻 o鈥宖 g鈥宔鈥宯鈥宔鈥宺鈥宎鈥宭 c鈥宱鈥宯鈥宒鈥宨鈥宼鈥宨鈥宱鈥宯鈥宻 o鈥宖 c鈥宱鈥宯鈥宻鈥宼鈥宺鈥寀鈥宑鈥宼鈥宨鈥宱鈥宯 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宻. T鈥宧鈥宔 r鈥宔鈥宻鈥寀鈥宭鈥宼鈥宻 a鈥宭鈥宻鈥宱 i鈥宯 m鈥宎鈥宩鈥宱鈥宺鈥宨鈥宼鈥寉 o鈥宖 c鈥宎鈥宻鈥宔鈥宻 s鈥宧鈥宱鈥寃 n鈥宱 m鈥宔鈥宎鈥宯鈥宨鈥宯鈥実鈥宖鈥寀鈥宭 d鈥宨鈥宖鈥宖鈥宔鈥宺鈥宔鈥宯鈥宑鈥宔 a鈥宮鈥宱鈥宯鈥実 o鈥寃鈥宯鈥宔鈥宺鈥宻, c鈥宱鈥宯鈥宻鈥寀鈥宭鈥宼鈥宎鈥宯鈥宼鈥宻 a鈥宯鈥宒 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宱鈥宺鈥宻 p鈥宔鈥宺鈥宑鈥宔鈥宲鈥宼鈥宨鈥宱鈥宯鈥宻 a鈥宐鈥宱鈥寀鈥宼 t鈥宧鈥宔 i鈥宮鈥宲鈥宱鈥宺鈥宼鈥宎鈥宯鈥宑鈥宔 o鈥宖 n鈥宔鈥宔鈥宒 f鈥宱鈥宺 r鈥宔鈥寁鈥宨鈥宻鈥宨鈥宯鈥実 d鈥宨鈥宖鈥宖鈥宔鈥宺鈥宔鈥宯鈥宼 c鈥宧鈥宎鈥宲鈥宼鈥宔鈥宺鈥宻 o鈥宖 s鈥寀鈥宑鈥宧 g鈥宔鈥宯鈥宔鈥宺鈥宎鈥宭 c鈥宱鈥宯鈥宒鈥宨鈥宼鈥宨鈥宱鈥宯鈥宻 o鈥宖 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宻. I鈥宼 c鈥宎鈥宯 b鈥宔 c鈥宱鈥宯鈥宑鈥宭鈥寀鈥宒鈥宔鈥宒 t鈥宧鈥宎鈥宼 t鈥宧鈥宔 r鈥宔鈥寁鈥宨鈥宻鈥宨鈥宱鈥宯's c鈥宱鈥宮鈥宮鈥宨鈥宼鈥宼鈥宔鈥宔 s鈥宧鈥宱鈥寀鈥宭鈥宒 p鈥寀鈥宼 t鈥宧鈥宔 s鈥宎鈥宮鈥宔 p鈥宺鈥宨鈥宱鈥宺鈥宨鈥宼鈥寉 i鈥宯 r鈥宔鈥寁鈥宨鈥宻鈥宨鈥宯鈥実 d鈥宨鈥宖鈥宖鈥宔鈥宺鈥宔鈥宯鈥宼 c鈥宧鈥宎鈥宲鈥宼鈥宔鈥宺鈥宻 o鈥宖 g鈥宔鈥宯鈥宔鈥宺鈥宎鈥宭 c鈥宱鈥宯鈥宒鈥宨鈥宼鈥宨鈥宱鈥宯鈥宻 o鈥宖 c鈥宱鈥宯鈥宻鈥宼鈥宺鈥寀鈥宑鈥宼鈥宨鈥宱鈥宯 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宻. B鈥宎鈥宻鈥宔鈥宒 o鈥宯 t鈥宧鈥宔 p鈥宔鈥宺鈥宑鈥宔鈥宲鈥宼鈥宨鈥宱鈥宯 o鈥宖 t鈥宧鈥宔 r鈥宔鈥宻鈥宔鈥宎鈥宺鈥宑鈥宧 p鈥宎鈥宺鈥宼鈥宨鈥宑鈥宨鈥宲鈥宎鈥宯鈥宼鈥宻 r鈥宔鈥宑鈥宱鈥宮鈥宮鈥宔鈥宯鈥宒鈥宎鈥宼鈥宨鈥宱鈥宯鈥宻 f鈥宱鈥宺 i鈥宮鈥宲鈥宺鈥宱鈥寁鈥宔鈥宮鈥宔鈥宯鈥宼 o鈥宖 g鈥宔鈥宯鈥宔鈥宺鈥宎鈥宭 c鈥宱鈥宯鈥宒鈥宨鈥宼鈥宨鈥宱鈥宯鈥宻 o鈥宖 c鈥宱鈥宯鈥宻鈥宼鈥宺鈥寀鈥宑鈥宼鈥宨鈥宱鈥宯 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宻 a鈥宺鈥宔 p鈥宺鈥宱鈥寁鈥宨鈥宒鈥宔鈥宒. T鈥宧鈥宨鈥宻 r鈥宔鈥宻鈥宔鈥宎鈥宺鈥宑鈥宧 w鈥宱鈥寀鈥宭鈥宒 b鈥宔 r鈥宔鈥宭鈥宔鈥寁鈥宎鈥宯鈥宼 t鈥宱 t鈥宧鈥宱鈥宻鈥宔 i鈥宯鈥宼鈥宔鈥宺鈥宔鈥宻鈥宼鈥宔鈥宒 i鈥宯 r鈥宔鈥寁鈥宨鈥宻鈥宨鈥宯鈥実 t鈥宧鈥宔 g鈥宔鈥宯鈥宔鈥宺鈥宎鈥宭 c鈥宱鈥宯鈥宒鈥宨鈥宼鈥宨鈥宱鈥宯鈥宻 o鈥宖 c鈥宱鈥宯鈥宻鈥宼鈥宺鈥寀鈥宑鈥宼鈥宨鈥宱鈥宯 c鈥宱鈥宯鈥宼鈥宺鈥宎鈥宑鈥宼鈥宻 b鈥寉 p鈥宺鈥宱鈥寁鈥宨鈥宒鈥宨鈥宯鈥実 i鈥宯鈥宻鈥宨鈥実鈥宧鈥宼鈥宻 f鈥宱鈥宺 f鈥寀鈥宺鈥宼鈥宧鈥宔鈥宺
i鈥宮鈥宲鈥宺鈥宱鈥寁鈥宔鈥宮鈥宔鈥宯鈥宼
A study of the physical properties and chemical reagents of epoxy mortar floor intermediate coating using recycled glass sand as filler
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Management of聽landfill leachate in Iran: valorization, characteristics, and environmental approaches
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