document

On the necessity of new hydrophobic treatment after repointing of water repellent masonry

Nijland, Timo G. (author), Lubelli, B. (author), van Zundert, Kim (author), van Hunen, Michiel (author)

The impregnation of the exterior surface of a masonry wall with a water repellent is a common intervention in (historic) building renovation and maintenance. Such treatments, whilst degrading at the surface with time under influence of ultra violet light, remain effective below the surface several decades after their application. During...

journal article 2024

document

Plasters with mixed-in crystallization inhibitors: Results of a 4-year monitoring of on-site application

Lubelli, B. (author), des Bouvrie, Ernst (author), Nijland, Timo G. (author), Kamat, Ameya (author)

Salt crystallization is a major cause of weathering of mortars, including plasters and renders. In the last decade, the use of mixed-in salt crystallization inhibitors in mortars has been proposed as a solution to improve the durability of this material with respect to salt decay. Laboratory characterization and accelerated weathering tests have...

journal article 2023

document

baseLess: lightweight detection of sequences in raw MinION data

Noordijk, Ben (author), Nijland, Reindert (author), Carrion, Victor J. (author), Raaijmakers, Jos M. (author), De Ridder, Dick (author), de Lannoy, C.V. (author)

With its candybar form factor and low initial investment cost, the MinION brought affordable portable nucleic acid analysis within reach. However, translating the electrical signal it outputs into a sequence of bases still requires mid-tier computer hardware, which remains a caveat when aiming for deployment of many devices at once or usage...

journal article 2023

document

Physical, chemical and mineralogical characterization of Dutch fine recycled concrete aggregates: A comparative study

Nedeljković, Marija (author), Visser, Jeanette (author), Nijland, Timo G. (author), Valcke, Siska (author), Schlangen, E. (author)

In circular concrete design, beside cement replacement with more environmentally friendly cement types, there is also an urgent need for sand replacement with fine recycled concrete aggregates (fRCA). The variations in physical and chemical properties of fRCA and lack of standards for their quality evaluation are the main reasons for not yet...

journal article 2021

document

Characterization and compatibility assessment of commercial stone repair mortars

Lubelli, B. (author), Nijland, Timo G. (author), van Hees, R.P.J. (author)

Compatibility of repair materials in conservation is a widely desired goal, but difficult to achieve. In this research, the compatibility of four commercial stone repair mortars, commonly used in conservation practice in the Netherlands and neighbouring countries, is discussed. In order to do so, they have been characterized in laboratory....

journal article 2021

document

Influence of laser parameters and experimental conditions on nonphotochemical laser-induced nucleation of glycine polymorphs

Irimia, D. (author), Jose Shirley, J. (author), Garg, Anshul S. (author), Nijland, Davey P.A. (author), van der Heijden, A.E.D.M. (author), Kramer, H.J.M. (author), Eral, H.B. (author)

Nonphotochemical laser-induced nucleation (NPLIN) is a promising primary nucleation control method, yet its underlying mechanism remains elusive. To contribute to the discussion on whether the polarization of laser irradiation in NPLIN experiments influences the polymorphic outcome, we revisit NPLIN experiments with aqueous glycine solutions...

journal article 2021

document

Analysis of naturally-generated corrosion products due to chlorides in 20-year old reinforced concrete: An elastic modulus-mineralogy characterization

Rossi, E. (author), Zhang, Hongzhi (author), Garcia, Santiago J. (author), Bijleveld, J.C. (author), Nijland, Timo G. (author), Copuroglu, Oguzhan (author), Polder, R.B. (author), Šavija, B. (author)

The elastic modulus of corrosion product (E_cp) has been reported with significant variations in the literature. This study aims to investigate the E_cp of naturally-generated chloride-induced corrosion products formed in different concrete mixes. Microstructural characterization was conducted through nano-indentation,...

journal article 2021

document

The influence of defects at the steel/concrete interface for chloride-induced pitting corrosion of naturally-deteriorated 20-years-old specimens studied through X-ray Computed Tomography

Rossi, E. (author), Polder, R.B. (author), Copuroglu, Oguzhan (author), Nijland, Timo (author), Šavija, B. (author)

Although reinforcement corrosion is a well-known issue, which are the locations of the steel/concrete interface most sensitive to pitting corrosion is still an unclear issue. In this study, X-ray computed tomography is used to characterize eight 20-years-old reinforced concrete cores naturally deteriorated due to chloride-induced corrosion....

journal article 2020

document

The influence of defects at the steel/concrete interface for pitting corrosion initiation studied through X-ray Computed Tomography and image analysis

Rossi, E. (author), Nijland, Timo (author), Copuroglu, Oguzhan (author), Polder, R.B. (author), Šavija, B. (author)

Although corrosion of reinforcement is a well-known issue for the construction industry, there are still open questions about some fundamentals of corrosion in reinforced concrete. These points include, among others, which are the most sensitive locations of the steel/concrete interface for pitting corrosion to initiate and to propagate. In...

journal article 2019

document

The Penicillium chrysogenum transporter PcAraT enables high-affinity, glucose-insensitive l-arabinose transport in Saccharomyces cerevisiae

Bracher, J.M. (author), Verhoeven, M.D. (author), Wisselink, H. Wouter (author), Crimi, B. (author), Nijland, Jeroen G. (author), Driessen, Arnold J.M. (author), Klaassen, Paul (author), van Maris, A.J.A. (author), Daran, J.G. (author), Pronk, J.T. (author)

Background: l-Arabinose occurs at economically relevant levels in lignocellulosic hydrolysates. Its low-affinity uptake via the Saccharomyces cerevisiae Gal2 galactose transporter is inhibited by d-glucose. Especially at low concentrations of l-arabinose, uptake is an important rate-controlling step in the complete conversion of these...

journal article 2018

document

Laboratory evolution of a glucose-phosphorylation-deficient, arabinose-fermenting S. cerevisiae strain reveals mutations in GAL2 that enable glucose-insensitive l-arabinose uptake

Verhoeven, M.D. (author), Bracher, J.M. (author), Nijland, Jeroen G. (author), Bouwknegt, J. (author), Daran, J.G. (author), Driessen, Arnold J.M. (author)

Cas9-assisted genome editing was used to construct an engineered glucose-phosphorylation-negative S. cerevisiae strain, expressing the Lactobacillus plantaruml-arabinose pathway and the Penicillium chrysogenum transporter PcAraT. This strain, which showed a growth rate of 0.26 h−1 on l-arabinose in aerobic batch cultures, was subsequently...

journal article 2018

document

The volcanic foundation of Dutch architecture: Use of Rhenish tuff and trass in the Netherlands in the past two millennia

Nijland, TG (author), van Hees, R.P.J. (author)

Occasionally, a profound but distant connection between volcano and culture exists. This is the case between the volcanic Eifel region in Germany and historic construction in the Netherlands, with the river Rhine as physical and enabling connection. Volcanic tuff from the Eifel comprises a significant amount of the building mass in Dutch...

journal article 2016

document

Van de symmetrie van diamant naar steenkeuze op de steiger

Quist, W.J. (author), Nijland, T.G. (author)

Bij grote restauraties aan gebouwen zijn tegenwoordig niet alleen architecten, historici en aannemers betrokken, maar ook specialistische adviseurs, waaronder geologen. In Nederland begon de betrokkenheid van aardwetenschappers bij de Delftse mijningenieur Abraham Louis Willem Eduard van der Veen, die in 1920 onderzoek ging doen voor de twee...

journal article 2014

document

A.L.W.E. van der Veen: Een Delfts mijningenieur in monumentenland

Quist, W.J. (author), Nijland, T. (author)

Bij grote restauratiecampagnes zijn tegenwoordig niet alleen architecten, historici en (onder aannemers betrokken, maar ook specialistische adviseurs, zoals bij de keuze van vervangende steensoorten. Dit zijn vaak adviseurs met bijvoorbeeld een geologische, chemische of materiaalkundige achtergrond. Dit is niet altijd het geval geweest. Ondanks...

journal article 2013

document

Evaluation of Spreading and Effectiveness of Injection Products against Rising Damp in Mortar/Brick Combinations

Hacquebord, A. (author), Lubelli, B. (author), Van Hees, R.P.J. (author), Nijland, T. (author)

Rising damp is one of the most recurrent and well-known hazards to existing buildings and monuments. Several types of intervention exist to tackle the problem. Among these, the creation of a damp-proof course against capillary rise by means of injection of chemical products is one of the most diffused methods, thanks to the relatively easy and...

journal article 2013

document

High filler concrete using fly ash: Chloride penetration and microstructure

Valcke, S.L.A. (author), Polder, R.B. (author), Nijland, T.G. (author), Leegwater, G.A. (author), Visser, J.H.M. (author), Bigaj-van Vliet, A.J. (author)

Most high filler concrete studies are based on relatively high contents of powder (cement + filler) (>400 kg m-3). This paper aims to increase the total fly ash content relative to the clinker content, while simultaneously minimizing the total powder content in the concrete to values lower than 300 kg m-3. The motivation for decreasing the total...

journal article 2012

document

Impact of Velvet Complex on Transcriptome and Penicillin G Production in Glucose-Limited Chemostat Cultures of a ?-Lactam High-Producing Penicillium chrysogenum Strain

Veiga, T. (author), Nijland, J.G. (author), Driessen, A.J.M. (author), Bovenberg, R.A.L. (author), Touw, H. (author), Van den Berg, M.A. (author), Pronk, J.T. (author), Daran, J.M. (author)

The multicomponent global regulator Velvet complex has been identified as a key regulator of secondary metabolite production in Aspergillus and Penicillium species. Previous work indicated a massive impact of PcvelA and PclaeA deletions on penicillin production in prolonged batch cultures of P. chrysogenum, as well as substantial changes in...

journal article 2012

document

Metabolic engineering of ?-oxidation in Penicillium chrysogenum for improved semi-synthetic cephalosporin biosynthesis

Veiga, T. (author), Gombert, A.K. (author), Landes, N. (author), Verhoeven, M.D. (author), Kiel, J.A.K.W. (author), Krikken, A. (author), Nijland, J.G. (author), Touw, H. (author), Luttik, M.A.H. (author), Van der Toorn, J.C. (author), Driessen, A.J.M. (author), Bovenberg, R.A.L. (author), Van den Berg, M.A. (author), Van der Klei, I.J. (author), Pronk, J.T. (author), Daran, J.M. (author)

Industrial production of semi-synthetic cephalosporins by Penicillium chrysogenum requires supplementation of the growth media with the side-chain precursor adipic acid. In glucose-limited chemostat cultures of P. chrysogenum, up to 88% of the consumed adipic acid was not recovered in cephalosporin-related products, but used as an additional...

journal article 2012

document

Functional characterization of the oxaloacetase encoding gene and elimination of oxalate formation in the β-lactam producer Penicillium chrysogenum

Daran, J.M. (author), Pronk, J.T. (author), Driessen, A.J.M. (author), Nijland, J.G. (author), Lamboo, F. (author), Puig-Martinez, M. (author), Veiga, T. (author), Gombert, A.K. (author)

Penicillium chrysogenum is widely used as an industrial antibiotic producer, in particular in the synthesis of ß-lactam antibiotics such as penicillins and cephalosporins. In industrial processes, oxalic acid formation leads to reduced product yields. Moreover, precipitation of calcium oxalate complicates product recovery. We observed oxalate...

journal article 2011

document

Self-healing of lime based mortars: Microscopy observations on case studies

Lubelli, B. (author), Nijland, T.G. (author), Van Hees, R.P.J. (author)

Lime mortars have, up to a certain extent, a self-healing capacity which may contribute to their durability. Self-healing in lime mortars consists of a process of dissolution, transport and re-precipitation of calcium compounds to heal cracks and fissures. The spontaneous occurrence of self-healing in lime-based mortars is a well known...

journal article 2011