- document
-
Vahidi, A. (author), Gebremariam, A.T. (author), Di Maio, F. (author), Meister, K.R. (author), Koulaeian, T. (author), Rem, P.C. (author)The construction industry urgently requires a resilient information system for effective coordination of data transmission among various stakeholders, including both the public and private sectors. Such an advanced digital solution would not only enhance transparency along the value chain but also improve both the quality of and confidence in...journal article 2024
- document
-
Wang, L. (author), Rem, P.C. (author), Di Maio, F. (author), van Beek, M.C. (author), Tomás, Gonçalo (author)Solid waste sorting is an important pre-treatment in recycling to improve the efficiency of material recovery and reduce costs. Motivated by the PEACOC project on metal recovery from solid wastes, an innovative magnetic density separation (MDS) process has been developed for solid waste sorting. It has intrinsic advantages over conventional...journal article 2024
- document
-
Megevand, B.P.N. (author), Cao, Wen-Jun (author), Di Maio, F. (author), Rem, P.C. (author)This paper aims to summarize, propose, and discuss existing or emerging strategies to shift towards a circular economy of materials. To clarify the landscape of existing circular practices, a new spectrum is proposed, from product-based strategies, where entire products go through several life cycles without being reprocessed, to material-based...journal article 2022
- document
-
Chang, C. (author), Di Maio, F. (author), Rem, P.C. (author), Gebremariam, A.T. (author), Mehari, Fanuel (author), Xia, Han (author)To upcycle End-of-Life (EoL) concrete from demolished buildings, it is essential to efficiently identify the different materials that may contaminate it. The precise identification and classification of materials and contaminants are vital processes for in-line quality inspection of recycled concrete aggregates transported on a conveyor belt....journal article 2022
- document
-
Kosse, J.J. (author), Dhallé, M. (author), Rem, P.C. (author), ter Brake, H.J.M. (author), ten Kate, H.H.J. (author)In this article, electromagnet layouts are presented, which generate a magnetic field with a magnitude gradient that does not vary significantly in a horizontal plane but decreases monotonically with the vertical height above the magnet. Such a one-direction magnetic field gradient is a specific requirement for magnetic density separation ...journal article 2021
- document
-
Kosse, J.J. (author), Dhallé, M. (author), Tomás, G. (author), Rem, P.C. (author), ter Brake, H.J.M. (author), ten Kate, H.H.J. (author)This article discusses the optimum layout of coils of a superconducting magnet system for magnetic density separation (MDS). MDS is a novel separation technology that combines a vertical magnetic field gradient with a ferrofluid to separate mixtures of non-magnetic particles based on their mass density. The MDS process can separate more than...journal article 2021
- document
-
Wen, P. (author), Lohlefink, C.G.K. (author), Rem, P.C. (author)Can random deposition create dense non-overlapping material feeding? The question is very fundamental for the research of particle packing, while the answer is of great importance for any industrial process that applies single object operation. To gain an insight into this issue, we studied the overlap problems of convex particles in the...journal article 2021
- document
-
Gebremariam, A.T. (author), Vahidi, A. (author), Di Maio, F. (author), Moreno-Juez, J. (author), Vegas-Ramiro, I. (author), Łagosz, Artur (author), Mróz, Radosław (author), Rem, P.C. (author)This study focuses on formulating the most sustainable concrete by incorporating recycled concrete aggregates and other products retrieved from construction and demolition (C&D) activities. Both recycled coarse aggregates (RCA) and recycled fine aggregates (RFA) are firstly used to fully replace the natural coarse and fine aggregates in...journal article 2021
- document
-
Gebremariam, A.T. (author), Di Maio, F. (author), Vahidi, A. (author), Rem, P.C. (author)Currently, natural resources are consumed at an alarming rate than their production (United Nations Environment Programme, 2014). This imposes unprecedented pressure on the environment. The problem seems to get worse with the present increase in population and demand for infrastructures. To alleviate these and other related problems, a circular...journal article 2020
- document
-
Prot, T.J.F. (author), Nguyen, V. H. (author), Wilfert, P.K. (author), Dugulan, A.I. (author), Goubitz, K. (author), de Ridder, D.J. (author), Korving, L. (author), Rem, P.C. (author), Bouderbala, A. (author), Witkamp, G.J. (author), van Loosdrecht, Mark C.M. (author)To prevent eutrophication of surface water, phosphate needs to be removed from sewage. Iron (Fe) dosing is commonly used to achieve this goal either as the main strategy or in support of biological removal. Vivianite (Fe(II) <sub>3</sub> (PO <sub>4</sub> ) <sub>2</sub> * 8H <sub>2</sub> O) plays a crucial role in capturing the phosphate, and...journal article 2019
- document
-
van Engelshoven, Y.D. (author), Wen, P. (author), Bakker, M.C.M. (author), Balkenende, R. (author), Rem, P.C. (author)An innovative route for plastics recycling is proposed, based on a combination of a logarithmic sorting process and colour plus high-resolution near-infrared (NIR) sensors. Although counterintuitive, it is shown that such a technology could sort clean flakes from rigid packaging waste into a very large number of different plastic grades with...journal article 2019
- document
-
Lotfi, Somayeh (author), Rem, P.C. (author), Di Maio, F. (author), Teklay, Abraham (author), Hu, M. (author), van Roekel, E (author), van der Stelt, H (author)Production of waste materials, via industrial and human activities, creates big environmental and economic problems but also opportunities to recover valuable resources. EU28 currently generates 461 million tons per year of ever more complex Construction and Demolition Waste (CDW) with average recycling rates of around 46%. There is still a...conference paper 2017
- document
-
Teklay, Abraham (author), Vahidi, A. (author), Lotfi, Somayeh (author), Di Maio, F. (author), Rem, P.C. (author)The ever-increasing interest on sustainable raw materials has urged the quest for recycled materials that can be used as a partial or total replacement of fine fractions in the production of concrete. This paper demonstrates a modelling study of recycled concrete waste fines and the possibility of turning them into active constituents for the...conference paper 2017
- document
-
Lotfi, Somayeh (author), Rem, P.C. (author), Deja, J (author), Mroz, R (author)The C2CA concrete recycling process consists of a combination of smart demolition, gentle grinding of the crushed concrete in an autogenous mill, and a novel dry classification technology called ADR to remove the fines. The` main factors in the C2CA process which influence the properties of Recycled Aggregates or Recycled Aggregate Concrete (RAC...conference paper 2017
- document
-
Lotfi, Somayeh (author), Rem, P.C. (author)One of the massive by-products of concrete to concrete recycling is the crushed concrete fines, that is often 0 - 4mm. Although the construction sector is to some extent familiar with the utilization of the recycled coarse fraction (>4 mm), at present there is no high-quality application for fines due to its moisturized and contaminated...journal article 2016
- document
- Di Maio, F. (author), Rem, P.C. (author), Lotfi, Somayeh (author), Bakker, M.C.M. (author), Xia, H. (author), Hu, M. (author) other 2016
- document
-
Lotfi, S. (author), Rem, P.C. (author)In the C2CA concrete recycling process, autogenous milling of the crushed End of Life (EOL) concrete is a mechanical method to remove cement paste from the surface of aggregates. During autogenous milling, the combination of shearing and compression forces, promotes selective attrition and delivers a better liberation. In order to investigate...conference paper 2015
- document
-
Di Maio, F. (author), Rem, P.C. (author)In order to move towards a more sustainable development, it is necessary not only to minimize the use of materials in the design stage and to find new materials as alternatives to nonrenewable ones (e.g. optical fiber instead of copper, biopolymers instead of polymers from oil) but also to reclaim as much as possible material value through...journal article 2015
- document
-
Polinder, H. (author), Rem, P.C. (author)A planar magnet for magnetic density separation, comprising an array of pole pieces succeeding in longitudinal direction of a mounting plane, each pole piece having a body extending transversely along the mounting plane with a substantially constant cross section that includes a top segment that is curved to distribute the magnetic field...patent 2014
- document
- Di Maio, F. (author), Lotfi, S. (author), Rem, P.C. (author), Bakker, M. (author), Hu, M. (author) lecture notes 2014