document

Utilization of waste foam concrete with MPCM as a substitution material for cement in mortars

Klemczak, Barbara (author), Gołaszewski, Jacek (author), Cygan, Grzegorz (author), Gołaszewska, Małgorzata (author), Jonkers, H.M. (author), Zhilyaev, D. (author), Koenders, Eduardus A.B. (author)

Given the rising popularity of foam concrete (FC) for both structural and insulating purposes, evaluating the feasibility of recycling after its lifespan is crucial in the context of the growing emphasis on sustainable building practices. One approach to recycling FC incorporating microencapsulated phase change material (MPCM) involves...

journal article 2024

document

Bioreceptive concrete: State of the art and potential benefits

Veeger, M.I.A. (author), Nabbe, Arendje (author), Jonkers, H.M. (author), Ottele, M. (author)

Implementing nature in cities has great potential to improve urban liveability by providing ecosystem services, which can help mitigate heat stress, improve air quality, attenuate noise, and reduce rainwater run-off. However, widespread adoption of urban nature and green building typologies is still limited due to their costs, environmental...

journal article 2023

document

Assessment of Functional Performance, Self-Healing Properties and Degradation Resistance of Poly-Lactic Acid and Polyhydroxyalkanoates Composites

Rossi, E. (author), Raghavan, A. (author), Copuroglu, Oguzhan (author), Jonkers, H.M. (author)

In this study, the applicability of two bacteria-based healing agents (e.g., poly-lactic acid and polyhydroxyalkanoate) in blast furnace slag cement (BFSC) mortar has been assessed. An experimental campaign on the functional properties, self-healing capacity, freezing–thawing and carbonation resistance has been conducted in comparison with plain...

journal article 2022

document

From waste to self-healing concrete: A proof-of-concept of a new application for polyhydroxyalkanoate

Vermeer, C.M. (author), Rossi, E. (author), Tamis, J. (author), Jonkers, H.M. (author), Kleerebezem, R. (author)

Polyhydroxyalkanoate (PHA) production is a promising opportunity to recover organic carbon from waste streams. However, widespread application of waste-derived PHA as biodegradable plastic is restricted by expensive purification steps, high quality requirements, and a fierce competition with the conventional plastic market. To overcome these...

journal article 2021

document

On the Applicability of a Precursor Derived from Organic Waste Streams for Bacteria-Based Self-Healing Concrete

Rossi, E. (author), Vermeer, C.M. (author), Mors, R.M. (author), Kleerebezem, R. (author), Copuroglu, Oguzhan (author), Jonkers, H.M. (author)

Bacteria-based self-healing concrete has the ability to heal cracks due to the bacterial conversion of incorporated organic compounds into calcium carbonate. Precipitates seal the cracks, theoretically increasing the service life of constructions. The aim of this paper is to propose a precursor for bacteria-based self-healing concrete derived...

journal article 2021

document

Bacteria‐based self‐healing concrete: Evaluation of full scale demonstrator projects

Mors, R.M. (author), Jonkers, H.M. (author)

Bacteria‐based self‐healing concrete is an innovative concrete that contains a self‐healing agent that provides the material with enhanced autonomous crack‐sealing performance. A specific type of this concrete, based on a healing agent composed of bacterial spores and lactate as carbon source, has been developed and applied by the Delft...

journal article 2020

document

Volume fraction, thickness, and permeability of the sealing layer in microbial self-healing concrete containing biogranules

Ersan, Yusuf Cagatay (author), Palin, D. (author), Yengec Tasdemir, Sena Busra (author), Tasdemir, Kasim (author), Jonkers, H.M. (author), Boon, Nico (author), De Belie, Nele (author)

Autonomous repair systems in construction materials have become a promising alternative to current unsustainable and labor-intensive maintenance methods. Biomineralization is a popular route that has been applied to enhance the self-healing capacity of concrete. Various axenic microbial cultures were coupled with protective carriers, and their...

journal article 2018

document

The Use of Alkaliphilic Bacteria-based Repair Solution for Porous Network Concrete Healing Mechanism

Sangadji, S. (author), Wiktor, V.A.C. (author), Jonkers, H.M. (author), Schlangen, E. (author)

Bacteria induced calcium carbonate precipitation based on metabolic conversion of nutrients has been acknowledged for having potentials in self-healing cement-based materials. Recent studies have shown the development of bacteria-based repair solution (liquid) for concrete surface repair. This article demonstrates the feasible application of...

conference paper 2017

document

Toward Bio-based geo- & Civil Engineering for a Sustainable Society

Jonkers, H.M. (author)

The since 2010 running research program 'Bio-Based Geo & Civil Engineering for a Sustainable Society (BioGeoCivil)', funded by the Dutch technology foundation STW, aims to develop novel bio-based construction materials that can be used in Civil- and Geo-engineering constructions to enhance the sustainability performance of the sector....

journal article 2017

document

Reduction of water permeation through cracks in mortar by addition of bacteria based healing agent

Mors, R.M. (author), Jonkers, H.M. (author)

conference paper 2015

document

Field application of self-healing concrete with natural fibres as linings for irrigation canals in Ecuador

Sierra Beltran, M.G. (author), Jonkers, H.M. (author), Mors, R.M. (author), Mera-Ortiz, W. (author)

This paper describes the first field application of self-healing concrete with alkaliphilic spore-forming bacteria and reinforced with natural fibres. The application took place in the highlands in Ecuador in July 2014. The concrete was cast as linings for an irrigation canal that transports water from glaciers in the Andean mountains to...

conference paper 2015

document

ESEM-BSE coupled with rapid nano-scratching for micro-physicochemical analysis of marine exposed concrete

Palin, D. (author), Thijssen, A. (author), Wiktor, V. (author), Jonkers, H.M. (author), Schlangen, H.E.J.G. (author)

Ordinary Portland cement (OPC) mortar specimens submerged in sea-water were analysed through environmental scanning electron microscopy (ESEM) in back scattered electron (BSE) mode and nano-scratching. Results from both sets of analysis show the presence of distinct phases associated with aragonite, brucite and cement paste. Phases associated...

conference paper 2015

document

Assessment of the functionality of bacteria-based repair system for concrete through ESEM analysis

Wiktor, V. (author), Jonkers, H.M. (author)

Biodeposition, a method by which calcium carbonate (CaCO3) precipitation is induced by bacteria, has been proposed as an interesting approach to protect building materials. The liquid-based system presented in this paper aims at the sealing of cracks and decrease of the porosity due to the production of a calcium-based biomineral. In this system...

conference paper 2015

document

Geopolymer Coating of Bacteria-containing Granules for Use in Self-healing Concrete

De Koster, S.A.L. (author), Mors, R.M. (author), Nugteren, H.W. (author), Jonkers, H.M. (author), Meesters, G.M.H. (author), Van Ommen, J.R. (author)

Concrete structures are often reinforced with steel. In order for the reinforcement to take over tensile forces, concrete has to crack. Through such cracks, water and compounds that are harmful to concrete can enter. This can cause durability issues like leakage, concrete degradation and reinforcement corrosion. In situ repair of cracks is often...

journal article 2015

document

Field performance of bacteria-based repair system: Pilot study in a parking garage

Wiktor, V.A.C. (author), Jonkers, H.M. (author)

This paper presents the field performance in a parking garage of the recently developed bacteria-based repair system for concrete. This liquid-based repair system aims at the sealing of cracks and decrease of the porosity due to the production of a calcium-based biomineral. The system combines advantages of both a traditional repair system for...

journal article 2015

document

Performance of shcc with bacteria for concrete patch repair

Sierra Beltran, M.G. (author), Jonkers, H.M. (author), Schlangen, E. (author)

The overall performance of concrete patch repair systems depends on the durability of and compatibility between the concrete substrate and the repair material. This paper investigates the performance of a new type of SHCC material with embedded bacteria as a repair material. The bacteria are a healing agent to enhance the durability of the...

conference paper 2014

document

Protection of aged concrete structures: Application of bio-based impregnation system

Wiktor, V.A.C. (author), Jonkers, H.M. (author)

This paper focuses particularly on the ageing of concrete due to micro-crack formation or freeze/thaw which results in an increased permeability of the concrete. The bacteria-based repair system presented in this paper aims at recovering the concrete permeability thanks to bacteria-induced calcium carbonate precipitation inside cracks/porosity....

conference paper 2014

document

Bio-inspired control of material properties in civil engineering: Current concept for corrsoion protection via the application of bacteria and bio-polymers

Koleva, D.A. (author), Jonkers, H.M. (author), van Breugel, K. (author)

The improvement of material properties of cement-based materials e.g. reduced permeability, porosity, uniform distribution of hydration products, etc. is of a significant importance and related to durability and sustainability of concrete and reinforced concrete structures. With this respect, a recent and novel approach is to "create" self...

journal article 2013

document

Practical approach production of bacteria-based agent-contained light weight aggregates to make concrete self-healing

Mors, R.M. (author), Jonkers, H.M. (author)

A functional experimental concrete system has been developed in our lab, in which a two component bacteria-based healing agent contained in a protective reservoir is included in the concrete mixture. Incorporated bacteria have the potential to produce copious amounts of calcium carbonate based crystals from supplied mineral precursor compounds....

conference paper 2013

document

Microbially mediated carbonation of marine alkaline minerals: Potential for concrete crack healing

Jonkers, H.M. (author), Palin, D. (author), Flink, P. (author), Thijssen, A. (author)

Concrete constructions in the marine environment suffer from chemical attack of sea salts which can induce damage to both the concrete matrix and embedded steel reinforcement. For example, ingress of sulfate and chloride ions can respectively result in detrimental ettringite formation and enhanced corrosion of the steel rebars. The first...

conference paper 2013