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[75810] Artykuł: Parameters of mortars supplemented with chalcedonite powderCzasopismo: IOP Conference Series: Earth and Environmental Science Tom: 214, Zeszyt: 1, Strony: 1-9ISSN: 1755-1307 Wydawca: IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND Opublikowano: Styczeń 2019 Seria wydawnicza: IOP Conference Series-Earth and Environmental Science Liczba arkuszy wydawniczych: 1.00 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Materiały z konferencji międzynarodowej (zarejestrowane w Web of Science) Punkty MNiSW: 0 Klasyfikacja Web of Science: Proceedings Paper Pełny tekst DOI Web of Science |
Laboratory tests were conducted of mortars supplemented with 0%, 5%, 20%, 35%, 50% of chalcedonite powder. Chalcedonite powder replaced the percentage amount of cement. The subject of tests was impact of admixture on properties of hardened mortars including: compressive strength, bending strength, water absorption and capillary rising. Tests of compressive strength were conducted following 2, 7, 14, 28, 56 and 90 days, whereas water absorption, capillary rising were tested following 28 days. The mortar demonstrated the biggest compressive strength where cement was replaced with admixture in 5% and following curing period of 90 days it was 72.1MPa. Mortars where cement was replaced in 5%, 20%, 35% and 50% demonstrated decrease of bending strength comparing to the reference mortar. During the test regarding water absorption, 50% admixture of powder resulted mass increase by 6.1 % in relation to the reference mortar, whereas 20% admixture of chalcedonite powder resulted in mass increase by 3.9% in relation to the reference mortar. Water absorption resulted from capillary rising during tests was below 3.5%.