M. Drewniok

Designing the composition of concrete mixtures based on properties of mortar

The research was nanced by the project No. 0842/B/T02/2011/40 from the National Science Centre and the project “DoktoRIS – Scholarship program for innovative Silesia” co- nanced by the European Union under the European Social Fund.

The influence of composition on thixotropic behaviour of cement mortar

This paper presents methods of measurement and results of rheological properties including the thixitropic stiffening of designed cement mortars. The aim of the study is to determine the effect of the type of cement, w/c ratio, and chemical admixtures on the selected rheological properties of mortars. It will allow a better understanding of the nature of previously observed decreasing formwork pressure when using self-compacting concrete.

Research data supporting: Minimising energy in construction: practitioners’ views on material efficiency

Data is from an online survey (hosted using Google Surveys). The data was generated by the users filling in the questions (36 questions for the survey and 9 about their background). Data was collected between 29 June and 10 October 2017.

The effect of temperature on the properties of fresh self-compacting concrete

Abstract The rheological properties of self-compacting concrete are closely influenced by temperature and the time. Previous studies which aim was to research the effect of temperature on self-compacting concrete workability, showed that the behaviour of fresh SCC at varying temperatures differs from that of normal vibrated concrete. The paper presents the study of rheological properties of fresh self-compacting concrete mixtures made with portland, blast furnace and component cement. Two types of superplasticizers were used. It was proven that temperature has a clear effect on workability; it can be reduced by selecting the appropriate superplasticizer and cement.

The influence of temperature on thixotropic behaviour of cement mortar

This paper presents methods of measurement and results of rheological properties including thixitropic stiffening of designed cement mortars. The aim of the study is to determine the temperature rheological properties of selected mortars. It will help the industry to better understand and describe the nature of the previously observed decreasing formwork pressure using self-compacting concrete.