Performance of self-compacting concrete cast in hot weather conditions

• Autorzy: Khalil Hossam S. , Abd Elhameid Mohamed W. , Badawy Amal A.

Identyfikatory

DOI

10.22630/srees.4867

• Języki publikacji: EN

Abstrakty

EN

This work focused on how self-compacting concrete (SCC) performs in situ in hot weather conditions at an ambient temperature of about 35°C. Tests for the rheological properties and compressive and splitting tensile strength aspects were carried out. The results of SCC mix ingredients on the rheological and hardened features of SCC mix were studied. Variations in the amount of portland cement content (CC), water to cement ratio (w/c), coarse to fine aggregate ratio (C : F), chemical admixture ratio, and pozzolanic admixture ratio were considered. Optimum values were obtained for these ingredients, which satisfied the SCC rheological characteristics and gave a 28-day compressive strength of 42 MPa, and 52 MPa after 28 days and 56 days, respectively. These optimum constituent values were 450 kg·m–3 of cement, 0.45 water cementitious ratio, and a coarse to fine material ratio of 1 : 0.8, a high range superplasticizer of 2%, and a mineral admixture of either 5% silica fume or 25% fly ash as a substitute for a similar amount cement.

Słowa kluczowe

EN

self-compacting concrete; rheological properties; compressive strength; splitting tension; silica fume; fly ash; hot weather; casting; retarder

• Wydawca: Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
• Czasopismo: Przegląd Naukowy Inżynieria i Kształtowanie Środowiska
• Rocznik: 2023
• Tom: Vol. 32, No. 3
• Strony: 284--302
• Opis fizyczny: Bibliogr. 24 poz., tab., wykr., zdj.

Twórcy

autor

Khalil Hossam S.

• Zagazig University, Faculty of Engineering, Egypt

autor

Abd Elhameid Mohamed W.

• Zagazig University, Faculty of Engineering, Egypt

autor

Badawy Amal A.

• Zagazig University, Faculty of Engineering, Egypt

Bibliografia

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