Publications
260 results found
Olmeda J, Sanchez de Rojas MI, Frias M, et al., 2013, Effect of petroleum (pet) coke addition on the density and thermal conductivity of cement pastes and mortars, FUEL, Vol: 107, Pages: 138-146, ISSN: 0016-2361
- Author Web Link
- Cite
- Citations: 32
Reig L, Tashima MM, Borrachero MV, et al., 2013, Properties and microstructure of alkali-activated red clay brick waste, Construction and Building Materials, Vol: 43, Pages: 98-106, ISSN: 0950-0618
Sintered red clay ceramic is used to produce hollow bricks which are manufactured in enormous quantities in Spain. They also constitute a major fraction of construction and demolition waste. The aim of this research was to investigate the properties and microstructure of alkali-activated cement pastes and mortars produced using red clay brick waste. The work shows that the type and concentration of alkali activator can be optimised to produce mortar samples with compressive strengths up to 50 MPa after curing for 7 days at 65 °C. This demonstrates a new potential added value reuse application for this important waste material.
Zhang T, Cheeseman C, Vandeperre LJ, 2012, Characterisation of corrosion of nuclear metal wastes encapsulated in magnesium silicate hydrate (MSH) cement, Ceramic Engineering and Science Proceedings, Vol: 33, Pages: 159-167, ISSN: 0196-6219
A novel low pH magnesium silicate hydrate cement system for encapsulating nuclear industry wastes have been developed using blends of MgO, silica fume (SF), MgCO3 and sand. Aluminium and Magnox swarf were encapsulated in both this new system and in a BFS/PC control system used in the nuclear industry. The interaction of the optimised mortar with the metal strips has been investigated, both in terms of rate of continued corrosion as well as the phases that form by reaction of the binder with different metal strips. Magnox swarf was better bound into the BFS/PC system than MgO/SF system whereas Al 1050 metal strips were bound better into the MgO/SF samples than into the BFS/PC reference mortar. No H2 generation was recorded when aluminium or magnox were encapsulated in the new binder, which is substantially better than what can be achieved with the reference system. Hence, the newly developed binder could potentially encapsulate mixtures of reactive metals better than the existing solution.
Kuenzel C, Grover LM, Vandeperre L, et al., 2012, Production of nepheline/quartz ceramics from geopolymer mortars, Journal of the European Ceramic Society, Vol: 33, Pages: 251-258, ISSN: 1873-619X
This research has investigated the mechanical properties and microstructure of metakaolin derived geopolymer mortars containing 50% by weight of silica sand, after exposure to temperatures up to 1200 °C. The compressive strength, porosity and microstructure of the geopolymer mortar samples were not significantly affected by temperatures up to 800 °C. Nepheline (NaAlSiO4) and carnegieite (NaAlSiO4) form at 900 °C in the geopolymer phase and after exposure to 1000 °C the mortar samples were transformed into polycrystalline nepheline/quartz ceramics with relatively high compressive strength (∼275 MPa) and high Vickers hardness (∼350 HV). Between 1000 and 1200 °C the samples soften with gas evolution causing the formation of closed porosity that reduced sample density and limited the mechanical properties.
Kuenzel C, Vandeperre LJ, Donatello S, et al., 2012, Ambient Temperature Drying Shrinkage and Cracking in Metakaolin-Based Geopolymers, JOURNAL OF THE AMERICAN CERAMIC SOCIETY, Vol: 95, Pages: 3270-3277, ISSN: 0002-7820
- Author Web Link
- Open Access Link
- Cite
- Citations: 184
Velis CA, Wilson DC, Rocca O, et al., 2012, An analytical framework and tool ('<i>InteRa</i>') for integrating the informal recycling sector in waste and resource management systems in developing countries, WASTE MANAGEMENT & RESEARCH, Vol: 30, Pages: 43-66, ISSN: 0734-242X
- Author Web Link
- Open Access Link
- Cite
- Citations: 112
Quijorna N, Coz A, Andres A, et al., 2012, Recycling of Waelz slag and waste foundry sand in red clay bricks, RESOURCES CONSERVATION AND RECYCLING, Vol: 65, Pages: 1-10, ISSN: 0921-3449
- Author Web Link
- Cite
- Citations: 63
Zhang T, Vandeperre LJ, Cheeseman CR, 2012, Magnesium-silicate-hydrate cements for encapsulating problematic aluminium containing wastes, Journal of Sustainable Cement-Based Materials, Vol: 1, Pages: 34-45, ISSN: 2165-0373
Low pH cement systems for encapsulating legacy nuclear industry wastes containing aluminium metal are being developed using blends of MgO and silica fume (SF). The rheology of the binary system is significantly improved by addition of sodium hexa-metaphosphate (Na-HMP) which reduces the required w/s ratio. The addition of MgCO3further controls the initial pH of the cement system and sand filler reduces shrinkage cracking. The physical, chemical and mechanical properties of the optimised MgO/SF cement system in terms of pH, setting time, microstructure, compressive strength, flexural strength and heat of hydration are reported and compared to the PC/BFS blended system currently used for waste encapsulation. The optimised MgO/SF cement and PC/BFS cement are also compared by monitoring the volume of H2generated from binder samples containing Al metal strips. Al metal was firmly bound into MgO/SF samples and H2gas was not detected, indicating that any corrosion reactions were very limited. It is concluded that the MgO/SF cement system has significant potential for encapsulating certain types of problematic wastes containing Al metal and may have uses in a range of other applications. © 2012 Taylor & Francis Group, LLC.
Tashima MM, Soriano L, Borrachero MV, et al., 2012, Alkali activation of vitreous calcium aluminosilicate derived from glass fiber waste, Journal of Sustainable Cement-Based Materials, Vol: 1, Pages: 83-93, ISSN: 2165-0373
The properties and microstructure of alkali-activated (AA) vitreous calcium aluminosilicate (VCAS) are presented in this paper. VCAS is manufactured from a by-product of the glass fiber industry and has been activated using NaOH and KOH solutions. The microstructure and mechanical properties of AA VCAS pastes and mortars are reported. The results show that depending on the type and concentration of hydroxide solution used, mortar samples with compressive strengths up to 77MPa can be formed after curing for three days at 65 °C. The research demonstrates the potential of VCAS to produce AA cements and the importance of alkali type and concentration in optimizing properties and microstructure. © 2012 Taylor & Francis Group, LLC.
Flatt RJ, Roussel N, Cheeseman CR, 2012, Concrete: An eco material that needs to be improved, Journal of the European Ceramic Society, Vol: 32, Pages: 2787-2798, ISSN: 1873-619X
Concrete is the largest volume material used by man and is irreplaceable for innumerable large infrastructure developments. From the point of view of natural resources, ecology and economy, it is virtually impossible to imagine substituting concrete by any other material. However, because of the large volumes used, its total energy and CO2 footprint is important. This material therefore needs to be improved and small steps can have a big impact, once again because of the large volumes involved. This review paper examines some of the routes that may be followed to further improve the environmental performance of concrete.
Al Sabbagh MK, Velis CA, Wilson DC, et al., 2012, Resource management performance in Bahrain: a systematic analysis of municipal waste management, secondary material flows and organisational aspects, Waste Management & Research (accepted)
Cheeseman CR, Vlasopoulos N, 2011, Binder composition, 0290155
This invention relates to a cement binder composition and to the use of the binder composition in construction products. The cement binder composition is based on MgO that absorbs CO2 when hardening. The binder composition of the present invention also comprises at least one magnesium carbonate (either hydrated or unhydrated) having the formula xMgCO3- yMg(OH)2- zH2O, wherein x is at least 1, and at least one of y or z is greater than 0. The binder composition may optionally comprise a hydroscopic material, for example NaCI. The MgO when mixed with water in the presence of the magnesium carbonate produces magnesium hydroxide that has a rosette-like morphology (as shown).
Kourti I, Devaraj AR, Bustos AG, et al., 2011, Geopolymers prepared from DC plasma treated air pollution control (APC) residues glass: Properties and characterisation of the binder phase, JOURNAL OF HAZARDOUS MATERIALS, Vol: 196, Pages: 86-92, ISSN: 0304-3894
- Author Web Link
- Cite
- Citations: 30
Mohammed B, Cheeseman CR, 2011, Use of Oil Drill Cuttings as an Alternative Raw Material in Sandcrete Blocks, Waste and Biomass Valorization, Vol: 2, Pages: 373-380, ISSN: 1877-265X
This research has investigated the use of waste oil drill cuttings treated by thermal desorption in sandcrete, a major construction material used throughout Nigeria and much of West Africa. Sandcrete samples were prepared using a sand to cement ratio of 6:1. The results show that replacing up to 50 wt% of sand by treated oil drill cuttings produced sandcrete with reduced water absorption and reduced sorptivity, increased density and reduced thermal conductivity. In addition, the compressive strengths of samples containing oil drill cuttings were comparable to control samples. The work demonstrates the potential for the beneficial reuse of waste oil drill cuttings treated by thermal desorption in the production of sandcrete blocks with improved properties.
Kourti I, Rani DA, Boccaccini AR, et al., 2011, Geopolymers from DC Plasma-Treated Air Pollution Control Residues, Metakaolin, and Granulated Blast Furnace Slag, 2nd International Conference on Sustainable Construction Materials and Technologies, Publisher: ASCE-AMER SOC CIVIL ENGINEERS, Pages: 735-740, ISSN: 0899-1561
- Author Web Link
- Cite
- Citations: 20
Zhang T, Cheeseman CR, Vandeperre LJ, 2011, Development of low pH cement systems forming magnesium silicate hydrate (M-S-H), CEMENT AND CONCRETE RESEARCH, Vol: 41, Pages: 439-442, ISSN: 0008-8846
- Author Web Link
- Open Access Link
- Cite
- Citations: 202
Lampris C, Stegemann JA, Pellizon-Birelli M, et al., 2011, Metal leaching from monolithic stabilised/solidified air pollution control residues, JOURNAL OF HAZARDOUS MATERIALS, Vol: 185, Pages: 1115-1123, ISSN: 0304-3894
- Author Web Link
- Cite
- Citations: 34
Zhang T, Vandeperre LJ, Cheeseman C, 2011, BOTTOM-UP DESIGN OF A CEMENT FOR NUCLEAR WASTE ENCAPSULATION, 35th International Conference and Exposition on Advanced Ceramics and Composites, Publisher: AMER CERAMIC SOC, Pages: 41-49, ISSN: 0196-6219
- Author Web Link
- Cite
- Citations: 10
Kourti I, Amutha Rani D, Boccaccini AR, et al., 2010, Geopolymers from DC plasma treated APC residues, metakaolin, and GGBFS, 2nd International Conference on Sustainable Construction Materials and Technologies, Pages: 67-76
Air pollution control (APC) residues generated from cleaning gaseous emissions at energy from waste plants burning municipal solid waste are classified as hazardous waste and are a significant disposal issue in the UK. APC residues have been combined with glass forming additives and treated using DC plasma technology. This produces an inert glass (APC glass) that has potential to be reused. APC glass has been characterised and used to form geopolymers. Metakaolin and GGBFS geopolymers have also been prepared. The compressive strength, density, water absorption and porosity of APC glass geopolymers were evaluated. Samples were also characterised using XRD, SEM and FTIR. Results show that APC glass geopolymers have excellent mechanical properties compared to other geopolymer materials with high density, low porosity and particularly high compressive strength. This work demonstrated that plasma treated APC residues can be used to form geopolymers with properties suitable for a range of construction applications.
Cheeseman CR, Tyrer M, Greaves RIW, et al., 2010, ABSORBENT MATERIAL
This invention relates to an adsorbent composition, its manufacture and its use, particularly to the use of the composition as cat litter.
Muehle S, Balsam I, Cheeseman CR, 2010, Comparison of carbon emissions associated with municipal solid waste management in Germany and the UK, RESOURCES CONSERVATION AND RECYCLING, Vol: 54, Pages: 793-801, ISSN: 0921-3449
- Author Web Link
- Cite
- Citations: 63
Tyrer M, Cheeseman CR, Greaves R, et al., 2010, Potential for carbon dioxide reduction from cement industry through increased use of industrial pozzolans, ADVANCES IN APPLIED CERAMICS, Vol: 109, Pages: 275-279, ISSN: 1743-6753
- Author Web Link
- Cite
- Citations: 13
Donatello S, Tong D, Cheeseman C, 2010, Production of technical grade phosphoric acid from incinerator sewage sludge ash (ISSA), Waste Management, Pages: 1634-1642
The recovery of phosphorus from sewage sludge ash samples obtained from 7 operating sludge incinerators in the UK using a sulfuric acid washing procedure to produce a technical grade phosphoric acid product has been investigated. The influences of reaction time, sulfuric acid concentration, liquid to solid ratio and source of ISSA on P recovery have been examined. The optimised conditions were the minimum stoichiometric acid requirement, a reaction time of 120 min and a liquid to solid ratio of 20. Under these conditions, average recoveries of between 72% and 91% of total phosphorus were obtained. Product filtrate was purified by passing through a cation exchange column, concentrated to 80% H3PO4 and compared with technical grade H3PO4 specifications. The economics of phosphate recovery by this method are briefly discussed.
Kourti I, Rani DA, Deegan D, et al., 2010, Production of geopolymers using glass produced from DC plasma treatment of air pollution control (APC) residues, JOURNAL OF HAZARDOUS MATERIALS, Vol: 176, Pages: 704-709, ISSN: 0304-3894
- Author Web Link
- Cite
- Citations: 56
Sullivan C, Tyrer M, Cheeseman CR, et al., 2010, Disposal of water treatment wastes containing arsenic - A review, SCIENCE OF THE TOTAL ENVIRONMENT, Vol: 408, Pages: 1770-1778, ISSN: 0048-9697
- Author Web Link
- Cite
- Citations: 161
Donatello S, Tyrer M, Cheeseman CR, 2010, Comparison of test methods to assess pozzolanic activity, CEMENT & CONCRETE COMPOSITES, Vol: 32, Pages: 121-127, ISSN: 0958-9465
- Author Web Link
- Open Access Link
- Cite
- Citations: 281
Kourti I, Cheeseman CR, 2010, Properties and microstructure of lightweight aggregate produced from lignite coal fly ash and recycled glass, Resources Conservation and Recycling, Vol: 54, Pages: 769-775, ISSN: 0921-3449
The effect of glass addition on the processing, physical properties and microstructure of lightweight aggregate made from lignite coal fly ash from the Megalopolis power station in Greece has been investigated. Fly ash/glass mixes have been rapidly sintered at temperatures between 1040 and 1120 °C in a rotary furnace, and the density, water absorption and pellet strength determined. Sintering 60:40 fly ash:waste glass mixes at 1120 °C produced lightweight aggregate with a mean density of 1.35 g/cm3, water absorption of ∼16% and crushing strength of 7.3 MPa. Major crystalline phases in sintered materials were quartz (SiO2), albite (NaAlSi3O8), moissanite (SiC), hematite (Fe2O3), wollastonite (CaSiO3) and diopside (CaMg(Si2O6)). The work indicates that Megalopolis fly ash combined with waste glass can be used to manufacture lightweight aggregate with properties comparable to commercially available products. Fly ash and glass are potential resources that are currently waste materials in Greece. The processing involving pelletising and sintering in a rotary kiln is similar to that required for other commercially available lightweight aggregates manufactured from shales, clays and slate, and therefore processing costs are expected to be similar. However, avoiding the costs and environmental impacts associated with importing lightweight aggregate or using pumice makes the production of FA/glass lightweight aggregate a viable option.
Roether JA, Daniel DJ, Rani DA, et al., 2010, Properties of sintered glass-ceramics prepared from plasma vitrified air pollution control residues, JOURNAL OF HAZARDOUS MATERIALS, Vol: 173, Pages: 563-569, ISSN: 0304-3894
- Author Web Link
- Cite
- Citations: 18
Rani DA, Roether JA, Deegan DE, et al., 2010, Castable glass and glass-ceramics from DC plasma treatment of air pollution control residues, Ceramics for Environmental and Energy Applications, Pages: 11-16, ISBN: 9780470905470
Energy from waste (EfW) plants combusting municipal solid wastes generate air pollution control (APC) residues from their emission abatement systems. APC residues are classified as hazardous waste, because of their high alkalinity, content of volatile heavy metals, high levels of leachable soluble salts, particularly chlorides, and trace organics including dioxins and furans; they have an absolute entry in the European Waste Catalogue. Consequently, the safe and effective management of APC residues is a major issue in the UK as they require physico-chemical treatment before disposal or thermal treatment to enable reuse. DC plasma arc technology is a recovery technology, producing a glass suitable for inert landfill but which has also been qualified for reuse as a product. In this work APC residues were combined with suitable fluxing agents and treated using DC plasma arc technology to produce a glass; this has been re-melted in the laboratory and cast into tiles. The tiles had comparable physical properties to commercial porcelain, granite and marble, with high bulk density (2900 kg/m3) and hardness (6.2 GPa). The as-cast glass tiles were converted into glass-ceramics by treatment at 1000 °C. The crystalline phases formed were gehlinite (Ca2Al2SiO2), anorthite (CaAl2Si2O8) and magnesium silicate (CaMgSi2O6) and had an elongated, acicular morphology. The waste derived glass-ceramic tiles exhibited mechanical properties appropriate for use as heavy duty floor tiles.
Donatello S, Tyrer M, Cheeseman CR, 2010, EU landfill waste acceptance criteria and EU Hazardous Waste Directive compliance testing of incinerated sewage sludge ash, WASTE MANAGEMENT, Vol: 30, Pages: 63-71, ISSN: 0956-053X
- Author Web Link
- Cite
- Citations: 80
This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.