Posouzení stability vlastnosti cementů

Abstract

Subject of this bachelor thesis is assessment stability properties of cement. At the beginning of this thesis is a description of cement production, chemical composition of cement and quality control in production. Further there are described chemical additives used with cements. To assess are used cements CEM I 42,5R and CEM II/A-LL 42,5R and additive – super plasticizer based on polycarboxylate ether. In this thesis is performed chemical analysis; on fresh mortar are performed tests on content of air and determination of consistence (by flow table) and on hardened cement paste is performed test of strength. Objective of this thesis is assess of cement properties dependent on their composition, assess disparity between used cements a assess difference, when it's used additive.