Effect of competitive adsorption between sodium tripolyphosphate and naphthalene superplasticizer on fluidity of cement paste

Abstract

The adsorption amount, ζ-potential of cement particles and fluidity of cement paste were tested to research the competitive adsorption between naphthalene superplasticizer (FDN) and STPP. The experimental results showed that the presence of STPP could significantly improve the fluidity of cement paste and reduce the fluidity loss with FDN. There existed a competitive adsorption between STPP and FDN. STPP and calcium ions formed complexes; they preferentially adsorbed onto surface of cement particles and preempt adsorption points of FDN; and it reduced adsorption amount of FDN. In the absence of STPP, saturation adsorption amount of FDN was 5.93 mg/g; but when the dosage of STPP was 0.1%, it reduced to 4.3 mg/g (about 72.5%). The adsorption amount of FDN was reduced by STPP, but ζ-potential of cement particles enhanced and fluidity of cement paste increased because of strong negative charge effect of the complexes. Adsorption of the complexes would delay Ca²⁺ into liquid and inhibit formation of active adsorption points. Then, content of FDN in liquid increased with the addition of STPP and ζ-potential of cement particles became stable. In this way, fluidity loss of cement paste reduced.

Keywords

sodium tripolyphosphate / naphthalene superplasticizer / ζ-potential / complex / competitive adsorption

References

[1] Papo A, Piani L, Ricceri R Sodium Tripolyphosphate and Polyphosphate as Dispersing Agents for Kaolin Suspensions: Rheological Characterization[J]. Colloid Surfaces A, 2002, 201: 219-230.

[2] Fisher Robin D, Hanna John V, Rees Gregory J, . Calcium Sulfatephosphate Composites with Enhanced Water Resistance[J]. J. Mater. Chem., 2012, 22: 4 837-4 846.

[3] Liu B, Dong Y-S, Lin P-Hua Preparation of Polyphosphate Porous Bioceramics and in vitro Cytocompatibility [J]. Journal of Inorganic Materials, 2011, 26(7): 759-764.

[4] Ho P Y, Gui K S, Woo L J, . Obliteration of Temporal Dorsal Bulla in Guinea Pigs Using Different Types of Calcium Phosphate[J]. International of Pediatric Otorhinolaryngology, 2011, 75(9): 1 176-1 780.

[5] Tian M, Chen F, Song W, . In vivo Study of Porous Strontium-doped Calcium Polyphosphate Scaffolds for Bone Substitute Applications[J]. Journal of Materals Science-Materials in Medicine, 2009, 20(7): 1 505-1 512.

[6] Grover L M, Gbureck U, Wright A J, . Cement Formulations in the Calcium Phosphate H₂O-H₃PO₄-H₄P₂O₇ System [J]. Journal of the American Ceramic Society, 2005, 88(11): 3 096-3 103.

[7] Goberis S, Pundene I, Antonovich V The Effect of Sodium Tripolyphosphate on the Properties of Medium-cement Refractory Castables based on Gorkal-40 Cement[J]. Refractories and Indusrtial Ceramics, 2005, 46(6): 403-408.

[8] Dhouibi L, Triki E, Salta M, . Studies on Corrosion Inhibition of Steel Reinforcement by Phosphate and Nitrite[J]. Materials and Structures, 2003, 36(8): 530-540.

[9] Goberis S, Stonis R Advantageous Features of Sodium Silicate as the Plasticizer for Low-cement Refractory Castables[J]. Refractories and Indusrtial Ceramics, 2004, 45(6): 446-449.

[10] Lampronti G I, Artioli G, Lliva L, . Role of Phosphate Species and Speciation Kinetics in Detergency Solutions[J]. Industrial & Engineering Chemistry Research, 2012, 51(11): 4 173-4 180.

[11] Babkina LA, Prokopenko MI, Soloshenko LN, . Development of Compositions of Highly Refractory Mortars [J]. Refractories and Indusrtial Ceramics, 2000, 41(3): 137-139.

[12] Kim H S, Park S-Y, Hur B Y The Effect of Sodium Tripolyphosphate on Sodium Silicate-Cement Grout[J]. Materials Science Forum, 2005, 486(7): 391-394.

[13] Ltifia M, Guefrechb A, Mounangac P Effects of Sodium Tripolyphosphate Addition on Early-age Physicochemical Properties of Cement Pastes[J]. Procedia Engineering, 2011, 10: 1 457-1 462.

[14] Pan W, Wang Peiming Effect of Compounding of Sodium Tripolyphosphate and Super Plasticizers on the Hydration of α-calcium Sulfate Hemihydrate[J]. Journal of Wuhan University of Technology-Mater. Sci. Ed., 2011, 26(4): 737-744.

[15] Ma B-g, Xu Y-h, Dong R-zhen Influence of Sodium Tripolyphosphate to the Hydration of Portland Cement [J]. Concrete, 2004, 181(11): 2-4.

[16] Huynh L, Beattie DA, Fornasiero D, Ralston J Effect of Polyphosphate and Naphthalene Sulfonate Formaldehyde Condensate on the Rheological Properties of Dewatered Tailings and Cemented Paste Backfill [J]. Miner. Eng., 2006, 19(1): 28-36.

[17] Burgos-Montes O, Palacios M, Rivilla P Compatibility between Superplasticizer Admixtures and Cements with Mineral Additions[J]. Construction and Building Materials, 2012, 31: 300-309.

[18] Felekoglu B, Sarıkahya H Effect of Chemical Structure of Polycarboxylate-based Superplasticizers on Workability Retention of Self-compacting Concrete[J]. Construction and Building Materials, 2008, 22: 1 972-1 980.

[19] Zhang D-F, Ju B-Z, Zhang S-Fen The Study on the Dispersing Mechanism of Starch Sulfonate as a Water-reducing Agent for Cement [J]. Carbohydrate Polymers, 2007, 70: 363-368.

[20] Peschard A, Govina A, Pourchez J a el Effect of Polysaccharides on the Hydration of Cement Suspension [J]. Journal of the European Ceramic Society, 2006, 26(8): 1 439-1 445.

[21] Yamada K, Ogawa S, Hanehara S Controlling of the Adsorption and Dispersing Force of Polycarboxylate-type Superplasticizer by Sulfate Ion Concentration in Aqueous Phase[J]. Cement and Concrete Research, 2001, 31(3): 375-383.

[22] S C, J Bjornstrom Influence of Cement and Superplasticizers Type and Dosage on the Fluidity of Cement Mortars-Part I [J]. Cement and Concrete Research, 2002, 32: 1 605-1 611.

[23] S C, J Bjornstrom Influence of Cement and Superplasticizers Type and Dosage on the Fluidity of Cement mortars-Part II [J]. Cement and Concrete Research, 2002, 32: 1 613-1 619.

[24] Bénard P, Garrault S, Nonat A, Cau-dit-Coumes C Influence of Orthophosphate Ions on the Dissolution of Tricalcium Silicate[J]. Cement and Concrete Research, 2008, 38(10): 1 137-1 141.

[25] Ma W, Brown PW Effect of Phosphate Additions on the Hydration of Portland Cement [J]. Advances in Cement research, 1994, 21(6): 1-12.

[26] Zhang M-H, Sisomphon K, Ng T S Effect of Superplasticizers on Workability Retention and Initial Setting Time of Cement Pastes[J]. Construction and Building Materials, 2010, 24: 1 700-1 707.

[27] Li G, He T, Hu Dawei Effects of Two Retarders on the Fluidity of Pastes Plasticized with Aminosulfonic Acid-based Superplasticizers[J]. Construction and Building Materials, 2012, 26: 72-78.

[28] Plank J, Sachsenhauser B, de Reese J Experimental Determination of the Thermodynamic Parameters Affecting the Adsorption Behaviour and Dispersion Effectiveness of PCE Superplasticizers [J]. Cement and Concrete Research, 2010, 40: 699-709.

[29] Anatol Z, Frank W, Lorenz Holzer Adsorption of Polyelectrolytes and Its Influence on the Rheology, Zeta Potential, and Microstructure of Various Cement and Hydrate Phases[J]. Journal of Colloid and Interface Science, 2008, 323: 301-312.

[30] Plank J, Winter C Competitive Adsorption Between Superplasticizer and Retarder Molecules on Mineral Binder Surface[J]. Cement and Concrete Research, 2008, 38: 599-605.