Identification of the cement type at the concrete surface with ordinary Portland cement and supplementary cementitious materials with a handheld X-ray Fluorescence analyser

This master's thesis provides knowledge on non-destructive testing of cement and supplementary cementitious materials composition in concrete with a handheld X-ray Fluorescence analyser. <br/><br/>Today, concrete production is responsible for 8\% of the world's $CO_{2}$ emissions. Recycling concrete material can directly contribute to the...

Electric curing of cement mortar

In this research, the effect of curing with different types of current, current densities/voltage intensity on mortar is studied. The main objective is to explore the outcomes of electric curing on the setting time of CEM-I mortar. For achieving the main objective, an electrical curing setup is designed to accommodate curing with direct current,...

The influence of freezing-thawing cycles on the geotechnical performance of an end-bearing energy pile

Energy piles are getting more attention for their sustainable and economic potential. The fluid pipes are integrated in the foundation piles, which makes it cost-attractive, but also relatively new to the Dutch geotechnical industry. By lowering the temperature limit of the anti-freeze fluid in the pipes the heat extraction and thereby also the...

Assessment of Existing Slender Masonry Walls beyond the Scope of the EN 1996 Norm: Numerically Based Analytical Solution to determine the Capacity under combined Vertical and Lateral Loading

In the last decade, maintenance and adaptive reuse, of the existing building stock, have gained ground in the construction sector. For the adaptive reuse of a building, it is required to analyze, meticulously, the existing structure. Unreinforced masonry structures are indicative of the Dutch built environment. For the assessment of their...

Fatigue behavior of resin and steel reinforced resin used in IBCs

Injection Bolts have been preferred for several reasons over other alternatives for the rehabilitation of old riveted steel bridges since 1970’s. More recently they have been used to obtain slip critical shear connections in new structures such as new bridges, large roofs, storm barriers and other structures exposed to cyclic loading. In...

Development of a speed conversion model for the SKM measured wet skid resistance

Skid resistance is an important parameter for road safety and therefore it is essential to monitor the skid resistance of pavements. In the Netherlands, skid resistance is measured with either the RWS Skid Resistance Tester -measuring the longitudinal friction coefficient- or the Seitenkraft-Messverfahren (SKM) -measuring the sideway friction...

The Influence of concrete composition on the behavior of steel fibre reinforced concrete (SFRC) C30/37: Quantitative study about the subsequent changes in the properties and mechanical behavior of SFRC C30/37 due to adjusting the concrete composition.

Steel fibre reinforced concrete (SFRC) is nowadays used as a construction material for pavement and industrial floors in The Netherlands. The common used SFRC mixture, is concrete strength class C30/37 mixed with circa 35 kg/m3 of steel fibre. <br/>The details of the concrete composition mixed with steel fibres are ignored. The mechanical tests...