Optimization of offset in the workability function

Abstract

This master’s thesis investigates the relationship between the flow resistance ratio and the superplasticizers to cement content ratio (sp/c). Additionally, it examines the suitability of the workability function in relation to the observed variables. It explores the possibility of adjusting the offset variable to improve the fit of the workability function. Analyzing the focus of the master thesis is performed by using data from existing reports and experiments conducted for this master thesis. To determine the flow resistance ratio of the matrixes, the constants are adjusted to account for the sp/c. These constants reduce the difference between the calculated values and the observed variables from 5.9% to 8.6% with the data from the reports and the experiments, respectively. This is a significant improvement from the previous coefficients. Linear optimization of the offset in the workability function is used to reduce the difference between the workability function and the observed values. The optimized offset for one equation reduces the difference between the observed values and the workability function by 21.8%, but the difference is still significant.

This master’s thesis investigates the relationship between the flow resistance ratio and the superplasticizers to cement content ratio (sp/c). Additionally, it examines the suitability of the workability function in relation to the observed variables. It explores the possibility of adjusting the offset variable to improve the fit of the workability function. Analyzing the focus of the master thesis is performed by using data from existing reports and experiments conducted for this master thesis. To determine the flow resistance ratio of the matrixes, the constants are adjusted to account for the sp/c. These constants reduce the difference between the calculated values and the observed variables from 5.9% to 8.6% with the data from the reports and the experiments, respectively. This is a significant improvement from the previous coefficients. Linear optimization of the offset in the workability function is used to reduce the difference between the workability function and the observed values. The optimized offset for one equation reduces the difference between the observed values and the workability function by 21.8%, but the difference is still significant.