Surface and bulk hydrophobic cement composites by tyre rubber addition

Abstract Penetration of water in cement composites, porous and hydrophilic materials, is cause of progressive deterioration and failure. Standard procedures for protecting building structures generally involve uniquely the modification of the surface by coating or impregnation procedures. In this work, the addition of tyre rubber (TR) to the cement paste is demonstrated to be effective for developing mortars with a pronounced hydrophobic behavior in every part of their structure. Hydrophobic performances are better in the case of finer TR grains size and for larger TR volume addition. TR mortars show higher porosity than the conventional ones, nevertheless the effect of the low rubber surface energy prevails, and the absorption of water drops is almost completely abated. These lightweight materials result to be very competitive for non-structural applications and are in agreement with the environmentally sustainable policies finalized to convert a synthetic waste to an engineering resource.

[1]  Giuseppe Carbone,et al.  Soft blasting of fluorinated polymers: The easy way to superhydrophobicity , 2017 .

[2]  S. Magina,et al.  Characterization of concrete surface in relation to graffiti protection coatings , 2016 .

[3]  F. Palumbo,et al.  Influence of chemistry on wetting dynamics of nanotextured hydrophobic surfaces. , 2010, Langmuir.

[4]  M A Heitzman,et al.  DESIGN AND CONSTRUCTION OF ASPHALT PAVING MATERIALS WITH CRUMB RUBBER MODIFIER , 1992 .

[5]  Alida Mazzoli,et al.  Mechanical behaviour and thermal conductivity of mortars containing waste rubber particles , 2011 .

[6]  Burtrand I. Lee,et al.  Tyre rubber/cement matrix composites , 1993 .

[7]  Xiang Shu,et al.  Recycling of waste tire rubber in asphalt and portland cement concrete: An overview , 2014 .

[8]  Rahul Ramachandran,et al.  Anti-Icing Superhydrophobic Surfaces: Controlling Entropic Molecular Interactions to Design Novel Icephobic Concrete , 2016, Entropy.

[9]  Christopher K.Y. Leung,et al.  Properties of rubberized concrete modified by using silane coupling agent and carboxylated SBR , 2016 .

[10]  A. Marmur.  Penetration and displacement in capillary systems of limited size , 1992 .

[11]  Su-Seng Pang,et al.  Waste tire fiber modified concrete , 2004 .

[12]  Luigi Coppola,et al.  Electric arc furnace granulated slag for sustainable concrete , 2016 .

[13]  Michael Nosonovsky,et al.  Dynamics of droplet impact on hydrophobic/icephobic concrete with the potential for superhydrophobicity. , 2015, Langmuir : the ACS journal of surfaces and colloids.

[14]  Anaclet Turatsinze,et al.  Mechanical characterisation of cement-based mortar incorporating rubber aggregates from recycled worn tyres , 2005 .

[15]  M. Aiello,et al.  Use of steel fibres recovered from waste tyres as reinforcement in concrete: pull-out behaviour, compressive and flexural strength. , 2009, Waste management.

[16]  Hong Liang,et al.  Wettability and spontaneous penetration of a water drop into hydrophobic pores. , 2016, Journal of colloid and interface science.

[17]  R. Lackner,et al.  Assessment of test methods for characterizing the hydrophobic nature of surface-treated High Performance Concrete , 2016 .

[18]  Su-Seng Pang,et al.  Investigation into Waste Tire Rubber-Filled Concrete , 2004 .

[19]  Y. Renardy,et al.  Spontaneous penetration of a non-wetting drop into an exposed pore , 2012 .

[20]  Xiong Zhang,et al.  Adding crumb rubber into exterior wall materials , 2002, Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA.

[21]  F. Palumbo,et al.  Long-lasting antifog plasma modification of transparent plastics. , 2014, ACS applied materials & interfaces.

[22]  I. Joekes,et al.  Use of tire rubber particles as addition to cement paste , 2000 .

[23]  Michael Nosonovsky,et al.  Self-assembling particle-siloxane coatings for superhydrophobic concrete. , 2013, ACS applied materials & interfaces.

[24]  G. Carbone,et al.  Cassie state robustness of plasma generated randomly nano-rough surfaces , 2014 .

[25]  Guoqiang Li,et al.  Development of waste tire modified concrete , 2004 .

[26]  Davide Lo Presti,et al.  Recycled Tyre Rubber Modified Bitumens for road asphalt mixtures: A literature review☆ , 2013 .

[27]  Xudong Chen,et al.  Influence of water-to-cement ratio and curing period on pore structure of cement mortar , 2013 .

[28]  Bishwajit Bhattacharjee,et al.  Porosity, pore size distribution and in situ strength of concrete , 2003 .