EFFECT OF THE GLASS POWDER AND THE POLYPROPYLENE FIBERS ON THE CHARACTERISTICS OF HIGH-PERFORMANCE CONCRETES

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1 Proceedings of the 5th International Conference on Integrity-Reliability-Failure, Porto/Portugal July 2016 Editors J.F. Silva Gomes and S.A. Meguid Publ. INEGI/FEUP (2016) PAPER REF: 6256 EFFECT OF THE GLASS POWDER AND THE POLYPROPYLENE FIBERS ON THE CHARACTERISTICS OF HIGH-PERFORMANCE CONCRETES M. Belkadi 1(*), R. Chaid 2, A. Perrot 3, N. Saoudi 4 1 UR-MPE, University Bordj Bouariridj - Algeria 2 UR-MPE, University M Hamed Bougara de Boumerdès, - Algeria 3 UBS- LIMAT B Centre de Recherche de Saint Maudé BP Lorient France 4 University Bouira, URMPE, LRME, Algeria (*) mouradlsilb@hotmail.fr ABSTRACT The Ultra-High Performances Fiber-Reinforced Concrete ( UHPFC) come to answer in projects of the current events, that is their complexity of forms, implemented or speed, this material having exceptional mechanicals properties quality guaranteeing a high compactness and an optimal resistance. The present study investigates the properties of Ultra Performances Fiber-Reinforced concretes successful (UPFC), by the study of the incorporation effect of the glass powder on the physical, mechanical properties and the durability of concretes, as well as the influence of the various types of fibers reversed forecast the effect of Superplastisizer on the characteristics of the UPFC to the fresh and hardened state. The results of the tests show that the formulated UPFC with the contents of 0,5 and 1 % of the glass powder presents of better. Keywords: Concret, HUPFC, superplastisizer, glass powder, durability. INTRODUCTION The development of concretes in high and in ultra-high performances (HPC and UHPC) is a topical subject, for the multiple advantages using these materials allows towards the structural and economic performances. knowing the reduction of the heterogeneousness, obtained by the improvement of the matrix quality, so as to increase the density by it and minimize the differences of rigidity and resistance with regard to the aggregates. Our study licence the formulation, the characterization of the UPFC, the action of both types of glass powder (transparent and smoked) on the physical and mechanical properties. As well as the influence of incorporation of polypropylenes fibers. MATERIALS Cement The class of cement used is CPJ CEMII 42,5N MATINE, with grinding finesse (SSB) about 3555 cm 2 /g. with addition of 18% of limestone coming from ACC of LAFARGE Algeria. Physic-Mechanical characteristics of the cement used are in the table

2 Topic_J: Civil Engineering Applications Table 1 - Physico-mecanique characteristics of cement Physical characteristics mechanical characteristics (MPa) Beginig of setting min Compressive strenth End of setting 3 h 30 ~ 4 h 30 7days 36,74 Masse spécifique 3,1 g /cm 3 14days 41,07 Heat of hydratation 456,60 (j/g) 28days 45,07 Sand We have used the sand dune (Oued Suf). After the granulometric analysis (figure 1) and the measurement of fineness modulus table 2 (Mf = 2), so we used Boussada sand (Mf = 0,95) to correct the finesse modulus. Table 2 - Characteristics of sands Types of sands Mv ap (kg/m 3 ) Mv ab (g/cm 3 ) ESP (%) M f Sand dune Oued Souf ,5 87,31 2 Sand Boussaâda The Sand is siliceous Oued Souf Boussaâda sable corrigé Fig. 1- Granulometric analysis of sands Superplasticizer Viscocrete TEMPO 12 provided from group SIKA. Brawn liquid clearly, PH : 6 ± 1, Density : 1,06 ± 0,01, Cl - : 1 %. Na 2 O E : 1 % Fibers coming from SIKA and TEKNACHEM SIKAfiber: polypropylène with 12mm length and 34 µm diameter. FIBRETEK PP : polypropylène length : 18 mm -568-

3 Proceedings of the 5th International Conference on Integrity-Reliability-Failure Glass powder In this work we have used two type of glass, ansparent glass and oked glass, obtained after crushing collected fragments for 1 hour,the physicochemical characteristics of the glass powder illustrated in table 3and 4. Table 3 - Analysis of the glass powder made by X-ray fluorescence Composants(%) SiO 2 Al 2 O 3 Fe 2 O 3 CaO MgO SO 3 K 2 O Na 2 O P 2 O 5 Ti0 2 PAF glass 72,21 1,5 0,36 11,54 0,54 0,24 0,25 12,74 0,01 0,04 0,57 glass 72,64 1,13 0,59 10,00 1,90 0,26 0,44 12,58 0,01 0,04 0,41 Caracteristics Table 4 - Physical characteristics of smoked glass powder Mv ap (kg/m 3 ) Mv ab (g/cm 3 ) SSB (cm 2 /g) Activity pouzzolanique Coulor Glass powder , g (Ca(OH) 2 /g White grisâtre Different formulations were tested and characterized at fresh and hardened state, successive adjustment of the quantities of components, until obtaining the final formulation table 5. The table presents eight formulas held after optimization of the granular skeleton and the dosage superplasticizer, from the sand of dune, strengthened by fibers polypropylene, with or without glass powder. Table 5 - Formulations of UPFC with sand dunes Glass powder ansparent glass powder oked glass powder % fiber F 0,5% F 1% F 1,5% F 2% F 0,5% F 1% F 1,5% F 2% Cement (Kg) Sand dune (Kg) Glass Powder (Kg) Water (l) Fiber polypropylène (Kg) 4,5 9 13,5 18 4,5 9 13,5 18 Superplasticizer (Kg) Masse volumique (kg/m 3 ) 2345, , , , W/C 0,28 0,28 0,28 0,28 0,28 0,28 0,28 0,28 % PV / C The workability of concretes is appreciably improved by smoked glass in comparison to the transparent glass. The use of the Superplastisizer allows a stability of the maneuverability during one hour

4 Topic_J: Civil Engineering Applications RESULTS AND CONCLUSIONS The mechanical behavior of UHPFC (Ultra-High performance Fiber-Reinforced Concrete) at the static charge was studied all in flexion strength ( 3 points) and in uniaxial compression on prismatic test cubes mm. Compressive Strength (a) (b) Fig. 2 - (a,b). Compressive strength of glass powder (ansparent and oked ) The first remarks from graph (Fig 2) shows that; - The compressive strength resistance varies between 52,5MPa to 85,7 MPa. - The Powder have physical and chemical roles [7]. - The interests resultants at 28 days of compressive resistance are (0,5% and 1% ) for ansparent Glass Powder, and for oked Glass Powder : - The smoked glass powder is important in comparison to the transparent powder

5 Proceedings of the 5th International Conference on Integrity-Reliability-Failure Flexion Strength Fig. 3 - Flexion strength of glass powder (transparent and smoked ) [MPa] The smoked glass powder percentage are very important at 28 days, all them are better than the transparent powder The percentage interesting for the two type of glass is 1% even for fume and transparent. Sound Auscultation The measurement permit to characterize the physical homogeneity of concrete, and to locate the defects. Table 6 - Results of sound auscultation 0% F 0,5% F 1% F 1,5% F 2% F 0,5 % F 1% F 1,5% F 2% powder V (m/s) T (µ s) 74,7 69,4 71,9 70,4 71, ,9 68,9 All the Glass powder improve the homogeneity of concrete compare it to ordinary concrete. CONCLUSION The workability is improved in concrete with smoked glass powder better then transparent powder. Mechanical Characteristics behavior increased with addition off the glass powder (transparent and smoked) The acoustics properties improved with glass powder, confirm their quality and homogeneity

6 Topic_J: Civil Engineering Applications Finally, valorization of the waste even the glass powder is important to preserve our environnement. en substitution 30% of cement in weight with waste glass, in an economic and environnemental contribution, because of reduction of CO 2 let out by commentary. REFERENCES [1]-Tafraoui Ahmed " Contribution to the valuation of the sand of dune of the western erg (Algeria). Application in new concretes " Doctoral thesis University of Toulouse, France. [2]-Richard P., Cheyrezy M,, Concretes of Reactive Powders, Annals of the ITBTP, n 532, puts into series Concrete,Mars-April 1995,320, p [3]-French association, of Civil engineering, AFGC (Recommendation AFGC). [4]-Behloul M, Definition of a law of behavior of the BPR. Annals of the ITBTP, in March- April, 1995, 532, p