Unit for Construction Materials
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Articles

​​​​​​Journal Articles

​2020
​MD De Klerk, M Kayondo, GM Moelich, WI De Villiers, R Combrinck, WO Boshoff
Durability of chemically modified sisal fibre in cement-based composites
Construction and Building Materials
Vol 241

​2019
J Kolawole, R Combrinck, WP Boshoff​Measuring the thixotropy of conventional concrete: the influence of viscosity modifyingagent, superplasticiser and water
Construction and Building Materials
Vol 225, pp 853 - 867​
​2019
M Kayondo, R Combrinck, WP Boshoff​
State-of-the-art-review on plastic cracking of concrete
Construction and Building Materials
Vol 225, pp 886 - 899​
​2019
R Combrinck, WP Boshoff​
Tensile properties of plastic concrete and the influence of temperature and cyclic loading
​Cement and Concrete Composites
Vol 97, pp 300-311
​2019
R Combrinck, M Kayondo, BD Le Roux, WI De Villiers, WP Boshoff​
Effect of various liquid admixtures on cracking of plastic concreteConstruction and Building Materials
Vol 202, pp 139 - 153​
​2018
JO Lerch, HL Bester, AS van Rooyen, R Combrinck, WI De Villiers, WP Boshoff​The effect of mixing on the performance of macro synthetic fibre reinforced concrete​Cement and Concrete Research
Vol 103, pp 130-139
​2018
CM Odendaal, AJ Babafemi, R Combrinck, WI De Villiers, WP Boshoff​

Evaluation of locally available synthetic macro fibres in a single fibre pull out test in concrete
Journal of the South African Institute of Civil Engineering
Vol. 60, pp 21–23

​2018
G Olivier, R Combrinck, M Kayondo, WP Boshoff​
Combined effect of nano-silica, super absorbent polymers, and synthetic fibres on plastic shrinkage cracking in concrete
​Construction and Building Materials
Vol 192, pp 85 - 98​
​2018
R Combrinck, L Steyl, WP Boshoff​Interaction between settlement and shrinkage cracking in plastic concrete 
​Construction and Building Materials
Vol 185, pp 1 - 11​
2018
R Combrinck, L Steyl, WP Boshoff​
Influence of concrete depth and surface finishing on the cracking of plastic concrete
Construction and Building Materials
Vol 175, pp 621 - 628​
​​2017
PD Nieuwoudt, AJ Babafemi, WP Boshoff​
The response of cracked steel fibre reinforced concrete under various sustained stress levels on both the macro and single fibre level​
Construction and Building Materials
Vol 156, pp 828 - 843​
​2017
​BJ Olawuyi, WP Boshoff
Influence of SAP content and curing age on air void distribution of high performance concrete using 3D volume analysis
Construction and Building Materials
Vol 135, pp 580 - 589​
​2017
​AJ Babafemi, WP Bpshoff
Pull-out response of macro-synthetic fibre from concrete matrix: Effect of loading rate and embedment lengthConstruction and Building Materials
Vol 135, pp 590 - 599​
​2017
PD Nieuwoudt, WP Boshoff​Time-dependent pull-out behaviour of hooked-end steel fibres in concreteCement and Concrete Composites
Vol 79, pp 133 - 147​
​2016​AJ Babafemi, WP BoshoffTesting and modelling the creep of cracked macro-synthetic fibre reinforced concrete (MSFRC) under flexural loadingMaterials and Structures
Vol 49, pp 4389 - 4400​
​2016​WP Boshoff, F Altmann, CJ Adendorff, V MetcherineA new approach for modelling the ingress of deleterious materials in cracked strain hardening cement-based composites​Materials and Structures
Vol 49, pp 2285 - 2295
2016A du Plessis, BJ Olawuyi, WP Boshoff, SG le RouxSimple and fast porosity analysis of concrete using X-ray computed tomography​Materials and Structures
Vol 49, pp 553 - 562
​2015J Vorel, WP BoshoffComputational modelling of real structures made of strain-hardening cement-based compositesApplied Mathematics and Computation
Vol 267, pp 562 - 570
​2015AJ Babafemi, WP BoshoffTensile creep of macro-synthetic fibre reinforced concrete (MSFRC) under uni-axial tensile loadingCement and Concrete Composites
Vol 55, pp 62 – 69
​2014J Vorel, WP BoshoffNumerical Simulation of Ductile Fiber-reinforced Cement-based CompositeApplied Mathematics and Computation
Vol 270, pp 433 - 442
​2014WP Boshoff​​Cracking behavior of strain-hardening cement-based composites subjected to sustained tensile loadingACI Materials Journal
Vol 111 (5), pp 553 – 560
​2013R Combrinck, WP BoshoffTypical plastic shrinkage cracking behaviour of concreteMagazine of Concrete Research
Vol 65 (8), pp 486-493
​2013WP Boshoff, R CombrinckModelling the severity of plastic shrinkage cracking in concrete​Cement and Concrete Research
Vol 48, pp 34-39
​2013WP Boshoff, CJ AdendorffEffect of sustained loading on strain-hardening cement-based composites crack widthsCement and Concrete Composites
Vol 37, 
pp 119-125
​2012R Combrinck, WP BoshoffInvestigation of plastic shrinkage cracking in conventional and low volume fibre reinforced concreteJournal of the Concrete Society of Southern Africa, Concrete Beton, Vol 1
​2009WP Boshoff, V Mechtcherine, GPAG van ZijlCharacterising the time-dependant behaviour on the single fibre level of SHCC: Part 2: The rate effects on fibre pull-out testsCement and Concrete Research
Vol. 39, pp 787–797
​2009WP Boshoff, V Mechtcherine, GPAG van Zijl​Characterising the time-dependant behaviour on the single fibre level of SHCC: Part 1: Mechanism of fibre pull-out creepCement and Concrete Research
Vol 39, pp. 779–786
​2007WP Boshoff, GPAG van ZijlA computational model for strain-hardening fibre-reinforced cement-based composites​Journal of the South African Institute of Civil Engineering
Vol. 49 No 2, pp 24–31
​2007WP Boshoff, GPAG van ZijlTime-dependent response of ECC: Characterisation of creep and rate dependenceCement and Concrete Research
Vol 37, pp 725-734
​2006WP Boshoff, GPAG Van ZijlCreep and creep fracture engineered cement-based compositesThe International Journal of Restoration of Buildings and Monuments, Vol. 12, No. 2, pp 133–141

Conference Articles​

​2019
J Bessinger, L Parker, R Combrinck​
Influence of supplementary cementitious materials and superplasticisers on the rheological properties of concrete
3rd International Conference on the Application of Superabsorbent Polymers (SAP) and Other New Admixtures Towards Smart Concrete, Sukuza, South Africa
​2019
G Moelich, R van Huffel, R Combrinck​
Used oil as an admixture to improve the rheological properties of concrete
3rd International Conference on the Application of Superabsorbent Polymers (SAP) and Other New Admixtures Towards Smart Concrete, Sukuza, South Africa
​2019
L Stone, R Pretorius, R Combrinck​
Compatibility between cement and superplasticiser in combination with fines, gypsum and fly ash
3rd International Conference on the Application of Superabsorbent Polymers (SAP) and Other New Admixtures Towards Smart Concrete, Sukuza, South Africa
​2018
​WI De Villiers, CL Pagel, C Robins, B Potgieter, WP Boshoff
Thermal testing of alternative masonry walls​
​10th International Masonry Conference, Milan, Italy
​2018
​WI De Villiers, J Fourie, WP Boshoff
Numerical modelling of alternative masonry units​
4th International Conference on Service Life Design for Infrastructures, Rilem Week 2018, Delft, Netherlands
​2018
​H Fataar, R Combrinck, WP Boshoff
Preliminary study on the single fibre pull-out fatigue resistance of fibre reinforced concrete
4th International Conference on Service Life Design for Infrastructures, Rilem Week 2018, Delft, Netherlands
​2018
M Diekmann, WP Boshoff, R Combrinck​
Creating a low embodied carbon concrete with conventional concrete properties
4th International Conference on Service Life Design for Infrastructures, Rilem Week 2018, Delft, Netherlands
​​2017
​GPAG van Zijl, WP Boshoff
The effect of crack patterns on the corrosion of steel reinforced SHCC​
SHCC4: Strain Hardening Cement-Based Composites, Dresden, Germany​
​2017
​R Combrinck, L Steyl, WP Boshoff
Influence of depth on the cracking of plastic concrete​​EAC2: 2nd RILEM/COST Conference on Early Age Cracking and Serviceability in Cement-Based Materials and Structures, Brussels, Belgium​
​2017
​MY Khan, JT Kolawole, WP Boshoff, R Combrinck
Influence of relaxation and cyclic loading on the tensile material​
EAC2: 2nd RILEM/COST Conference on Early Age Cracking and Serviceability in Cement-Based Materials and Structures, Brussels, Belgium​
​2017
​WP Boshoff, HL Bester, C Viljoen
Initial study on the determining the design values of macro synthetic FRC for floors on grade​
ICACMS, Chennai, India​
​2017
​AJ Babafemi, WP Boshoff
Pull-out phenomenon of synthetic macro fibres from a cementitious matrix​
ICACMS, Chennai, India​
​2017
​BJ Olawuyi, WP Boshoff
Influence of superabsorbent polymers (SAP) on ​fresh and early-age properties of high-performance concrete
ICCM2017 10th ACI/RILEM International Conference​, Montreal, Canada
​2017
​WP Boshoff
Keynote: Is your concrete wasteful, or full of waste?​
​KEYS Conference, Johanensburg, South Africa
​2016
AJ Babafemi, WP Boshoff​Creep response of polypropylene macro fibre concrete under sustained flexural service loads​BEFIB 2016, 9th Rilem International Symposium on Fibre Reinforced Concrete, Vancouver, Canada​
​2016
L Steyl, R Combrinck, WP Boshoff​​Proposed mould for the assessment of pure plastic shrinkage cracking
​International fib Symposium 2016, Cape Town, South Africa​
2016​R Combrinck, WP Boshoff​Analytical model of the cracking of plastic concrete​International fib Symposium 2016, Cape Town, South Africa​
​2016JO Lerch, AS van Rooyen, WP Boshoff​The influence of mixing on the single0fibre performance of macro synthetic fibre reinforced concrete​BEFIB 2016, 9th Rilem International Symposium on Fibre Reinforced Concrete, Vancouver, Canada​
​2016​​PBK Mbewe, WI de Villiers​Evaluation of materials laboratory capacity for promotion of design-build teaching approach in architectural courses​Sustainable Futures Conference, Nairobi, Kenya​
​2016​PBK Mbewe, WI de Villiers​Environmental sustainability evaluation of low-cost buildings: The case of buildings under the JENGA project​Sustainable Futures Conference, Nairobi, Kenya​
​2016LM Pike, WP Boshoff​Procesing Bagasse ash for the South African cement industry​Sustainable Futures Conference, Nairobi, Kenya​
​2016JP Louw, WP Boshoff​Mechanical properties of alkali activated materials for construction​Sustainable Futures Conference, Nairobi, Kenya​
​2016WP Bosshoff​, PD Nieuwoudt​Tensile creep of cracked steel fibre reinforced concrete: mechanisms on the single fibre and at the macro level​​International RILEM workshop on creep behaviour in cracked section of Fibre Reinforced Concrete, FRC Creep, Valencia, Spain
​2016​AJ Babafemi, WP BoshoffMacro-synthetic fibre reinforced concrete: Creep and creep mechanisms​​International RILEM workshop on creep behaviour in cracked section of Fibre Reinforced Concrete, FRC Creep, Valencia, Spain
​2015BD le Roux, R Combrinck, WP Boshoff​Influence of admixtures on plastic shrinkage cracking of concrete​​The Fifth International Conference on Construction Materials: Performance, Innovations and Structural Implications, CONMAT'15, Whistler, Canada
​2015A van Noordwyk, WI de Villiers, WP Boshoff​Environmental impact of residential building envelope: A comparison between thermal performance and occupant energy usage​​The Fifth International Conference on Construction Materials: Performance, Innovations and Structural Implications, CONMAT'15, Whistler, Canada
​2015AJ Babafemi, WP Boshoff​Crack widening response of cracked macro synthetic FRC under sustained tensile loading​​The Fifth International Conference on Construction Materials: Performance, Innovations and Structural Implications, CONMAT'15, Whistler, Canada
​2014R Combrinck, WP BoshoffFundamentals of plastic settlement crackingInternational Conference on Construction Materials and Structures, ICCMATS, Johannesburg, South Africa
​2014JD Dippenaar, R Combrinck, WP BoshoffInitial study to determine the tensile material properties of fresh concreteInternational Conference on Construction Materials and Structures, ICCMATS, Johannesburg, South Africa
​2014BJ Olawuyi, WP Boshoff3D- Void analysis of high performance of concretes containing superabsorbent polymers (SAP)International RILEM Conference on Application of superabsorbent polymers and other new admixtures in concrete construction, Dresden, Germany
​2014WI de Villiers, WP Boshoff3D modelling of alternative masonry walling for South African low-cost housingInternational Masonry Conference, Guimarães, Portugal
​2014J Vorel, WP BoshoffNumerical simulation of shear behaviour of SHCC elementsInternational Conference on Engineering Mechanics, Svratka, Czech Republic
​2013WI de Villiers, WP Boshoff, A van Noordwyk, C Brewis, J BritsFull life cycle analysis of the environmental impact of low-cost housing in South AfricaInternational Housing Conference, Exhibition and Housing Awards, Cape Town, South Africa
​2013WP Boshoff, MD de Klerk, G Coetzee, WI de Villiers, RD Tolêdo FilhoAlternative materials for masonry unitsInternational Housing Conference, Exhibition and Housing Awards, Cape Town, South Africa
​2013
R Combrinck, WP BoshoffThe origin of plastic settlement cracking and the effect of re-vibration​International Conference on Structural Engineering, Mechanics and Computation (SEMC 2013), Cape Town, South Africa
​2013
​DW Immelman, WI de Villiers
​The influence of percentage replacement from coarse recycled concrete aggregate
International Conference on Structural Engineering, Mechanics and Computation (SEMC 2013), Cape Town, South Africa
​2013BJ Olawuyi, WP BoshoffCompressive strength of high-performance concrete with absorption capacity of super-absorbing-polymers (SAP)International Conference on Structural Engineering, Mechanics and Computation (SEMC 2013), Cape Town, South Africa
​2013G Coetzee, WP BoshoffSisal reinforced cement-based masonry unitsInternational Conference on Structural Engineering, Mechanics and Computation (SEMC 2013), Cape Town, South Africa
​2013AJ Babafemi, WP BoshoffTime-dependent behaviour of pre-cracked polypropylene fibre reinforced concrete (PFRC) under sustained loadingInternational Conference on Structural Engineering, Mechanics and Computation (SEMC 2013), Cape Town, South Africa
​2013AJ Babafemi, WP BoshoffPreliminary creep behaviour of polypropylene fibre reinforced concrete (PPFRC) under a high tensile stressProceedings of the International Conference ACCTA, Johannesburg, South Africa
​2013​BJ Olawuyi, WP BoshoffInfluence of particle size distribution on compressive strength and elastic modulus of high-performance concreteProceedings of the International Conference ACCTA, Johannesburg, South Africa
​2012​WI de Villiers, WP BoshoffRegulation of alternative building materials and systems in South AfricaInternational Conference, Exhibition and Housing Awards, South African Housing Foundation, Cape Town
​2012J Vorel, WP BoshoffNumerical modelling of engineered cement-based compositesProceedings of the International Conference of Engineered Mechanics, Svratka, Czech Republic
​2012R Combrinck, WP BoshoffTheory for the early age plastic cracking behaviour of concretefib PhD Symposium, Karlsruhe, Germany
​2012R Combrinck, WP BoshoffInfluence of restraint on the early age cracking of concreteProceedings of BEFIB, Guimaraes, Portugal
​2012CJ Mouton, WP BoshoffInitial study on the tensile creep of cracked fibre reinforced concreteProceedings of BEFIB, Guimaraes, Portugal
​2012PD Nieuwoudt, WP BoshoffThe comparison between the cracking behaviour of bending and tension for strain-hardening cement-based composites (SHCC)Proceedings of ICCRRR, Cape Town, South Africa
​2012W.P. Boshoff, R. Combrinck, J. MaritzA model for the prediction of plastic shrinkage cracking in concreteProceedings of the International Conference on Concrete Repair, Rehabilitation and Retrofitting, South Africa
​2011WP Boshoff, PD NieuwoudtTensile crack widths of SHCCSecond International Conference on Strain Hardening Cement-based Materials, Rio de Janeiro, Brazil
​2011W de Villiers, WP BoshoffThe development of a decision-making model to determine the appropriateness of alternative building technologies for application in the social housing industryInternational Conference, Exhibition and Housing Awards, South African Housing Foundation, Cape Town
​2011WP BoshoffPerformance based approach for modelling the cracking of SHCC for durabilityFIB international workshop on performance based specifications for concrete, Leipzig, Germany
​2011J Maritz, R Combrinck, WP BoshoffInvestigation of the behaviour of low-volume fibre reinforced concrete in the fresh stateFIB international workshop on performance based specifications for concrete, Leipzig, Germany
​2011R Combrinck, WP BoshoffInvestigation of the critical period for plastic shrinkage crackingFIB international workshop on performance based specifications for concrete, Leipzig, Germany
​2010R Combrinck, WP BoshoffInvestigation of plastic shrinkage cracking in concrete4th International Conference on Structural Engineering, Mechanics and Computation (SEMC 2010), Cape Town, South Africa.
​2010C Brewis, WP BoshoffA holistic approach for measuring the environmental impact of the built environmentCSE 2010 - Concrete for a Sustainable Environment, Emperor's Place, Kempton Park, South Africa
​2010WP Boshoff, CJ AdendorffModelling SHCC cracking for durabilityProceedings of the European Conference on Fracture, Dresden, Germany
​2009CJ Adendorff, WP Boshoff, GPAG van ZijlCharacterisation of crack distribution of Strain-hardening cement composites (SHCC) under imposed strainProceedings of the International Conference ACM 2009, Stellenbosch
​2009J Vorel, WP Boshoff,Numerical modelling of strain hardening fibre-reinforced compositesProceedings of the International Conference ACM 2009, Stellenbosch
​2009CJ Adendorff, WP BoshoffTensile creep of notched SHCCProceedings of the International Conference CONMAT 2009, Japan
​2008GPAG van Zijl, WP BoshoffMechanisms of creep in fibre-reinforced strain–hardening cement composites (SHCC)Proceedings of the international conference CONCREEP, Japan
​2008WP Boshoff, CJ Adendorff, GPAG van ZijlCreep of cracked strain hardening cement-based compositesProceedings of the international conference CONCREEP, Japan
​2008Van Zijl, GPAG, Boshoff, WPFRC in South Africa - application fields, new developments and outlookProceedings of the international conference, ICCX 2008, Sun City, South Africa
​2007WP Boshoff, GPAG van ZijlTime-dependant behaviour of SHCC on the single fibre levelProceedings of the international conference, SEMC, Cape Town
​2007WP Boshoff, GPAG van ZijlTensile creep of SHCCInternational RILEM conference on High Performance fibre Reinforced Cement Composites, Mainz, Germany
​2007WP Boshoff, GPAG van ZijlMesh-objectivity of crack modelling in SHCCInternational conference on the Nonlocal Modelling of Material's Failure, NMMF, Wuppertal
​2005WP Boshoff, GPAG van ZijlTime-dependant response of ECC: Characterisation and modelling of creep and creep fractureProceedings of International workshop on HPFRCC in structural applications, Honolulu, Hawaii, USA
​2004WP Boshoff, GPAG van ZijlCreep modelling of ductile fibre reinforced compositesProceedings of Fracture Mechanics of Concrete and Concrete Structures (FRAMCOS), Vale, U.S.A
​2004WP Boshoff, GPAG van ZijlComputational and experimental modelling of creep behaviour of engineered cement-based compositesProceedings of SEMC, Cape Town
​2003WP Boshoff, GPAG van ZijlComputational strategies for time-dependent behaviour of engineered cement-based compositesProceedings for EURO-C 2003, Computational Modelling of Concrete Structures (eds. N Bicanic et al.)pp 59-65