Prospects for the use of solar energy to accelerate the hardening of concrete in the construction of monolithic structures in RussiaDavid A. Sarkisov, Boris V. Zhadanovskii, Sergey A. Sinenko and Maksim K. EsenovE3S Web Conf., 284 (2021) 06001DOI: https://doi.org/10.1051/e3sconf/202128406001