Treatment of Recycled Concrete Aggregates by Si-Based Polymers
The recycling of concrete, bricks and masonry rubble
as concrete aggregates is an important way to contribute to a
sustainable material flow. However, there are still various
uncertainties limiting the widespread use of Recycled Concrete
Aggregates (RCA). The fluctuations in the composition of grade
recycled aggregates and their influence on the properties of fresh and
hardened concrete are of particular concern regarding the use of
RCA. Most of problems occurring while using recycled concrete
aggregates as aggregates are due to higher porosity and hence higher
water absorption, lower mechanical strengths, residual impurities on
the surface of the RCA forming weaker bond between cement paste
and aggregate. So, the reuse of RCA is still limited. Efficient
polymer based treatment is proposed in order to reuse RCA easier.
The silicon-based polymer treatments of RCA were carried out and
were compared. This kind of treatment can improve the properties of
RCA such as the rate of water absorption on treated RCA is
significantly reduced.
[1] H.J. Chen, T. Yen, K.H. Chen, "Use of building rubbles as recycled
aggregates", Cem Concr Res, 33, 2003, pp. 125-132
[2] F.M. Khalaf, A.S. DeVenny, "Properties of new and recycled clay brick
aggregates for use in concrete", J Mater Civil Eng, 17,2005, pp. 456-464
[3] F.M. Khalaf, A.S. DeVenny, "Recycling of demolished masonry rubble
as coarse aggregate in concrete: review", J Mater Civil Eng, 16, 2004,
pp. 331-340
[4] J.S. Ryu, "An experimental study on the effect of recycled aggregate on
concrete properties", Mag Concr Res, 54 , 2002, pp. 7-12
[5] C. Hoffmann, S. Schubert, A. Leemann, "Influence of variations in
composition on the concrete properties and their use as structural
material". Constr Build Mat, 35, 2012, pp. 701-709
[6] M. Etxeberria, E. Vázquez, A. Marí, M. Barra, "Influence of amount of
RCA and production process on properties of recycled aggregate
concrete", Cem Concr Res, 37, 2007, pp 735-742
[7] L. Evangelista, J. De Brito, "Durability performance of concrete made
with fine recycled concrete aggregates", Cement and Concrete
Composites, 32, 2010, pp 9-14
[8] S. Nagataki, "Properties of Recycled Aggregate and Recycled Aggregate
Concrete", International Workshop on Recycled Concrete 2000
[9] T.C. Hansen, H. Narud, "Strength of recycled concrete made from
crushed concrete coarse aggregate", Concrete InternationalÔÇöDesign and
Construction, 5 (1), 1983, pp. 79-83
[10] T.C. Hansen, "Recycled aggregate and recycled aggregate concrete,
Second State-of-the-art Report developments 1945-1985," Materials and
structures, 111, RILEM 1986
[11] S. Hasaba, M. Kawamura, K. Torik, K. Takemoto, "Drying shrinkage
and durability of the concrete made of recycled concrete aggregate",
Transactions of the Japan Concrete Institute, 3, 1981, pp. 55-60
[12] T. Mukai, H. Koizumi "Study on reuse of waste concrete for aggregate
of concrete", Paper Presented at a Seminar on "Energy and Resources
Conservation in Concrete Technology", Japan-US Co-operative Science
Prog, San Francisco,1979
[13] N. Otsuki, S.I Miyazato., W.Yodsudjai "Influence of Recycled
Aggregate on Interfacial Transition Zone, Strength, Chloride Penetration
and Carbonation of Concrete". J Mater Civil Eng, 15, 2003, pp 443-451
[14] D. Kong, T. Lei, J. Zheng, C. Ma, Jun Jiang, J. Jiang, "Effect and
mechanism of surface-coating pozzalanics materials around aggregate on
properties and ITZ microstructure of recycled aggregate concrete".
Constr. and Build. Mat., 24, 2010, pp 701-708
[15] V.W.Y Tam,., C.M. Tam, Y. Wang, "Optimization on proportion for
recycled aggregate in concrete using two-stage mixing approach".
Constr and Build Mat., 21, 2007, pp 1928-1939
[16] S.C Kou., C.S Poon., Etxeberria M., "Influence of recycled aggregates
on long term mechanical properties and pore size distribution of
concrete". Cem Concr Comp, 33, 2011, pp 286.
[17] V. Spaeth, JP Lecomte, MP Delplancke, "Development of cement
materials by incorporation WR additives", RBM, Aedificatio publishers,
16, 2010, pp 315-324
[18] Zhao T, Wittmann F H., Jiang R, Li W, "Application of silane-based
compounds for the production of integral water repellent concrete", HVI,
6th International conference on WR treatment of building materials,
2011, pp 137-144
[1] H.J. Chen, T. Yen, K.H. Chen, "Use of building rubbles as recycled
aggregates", Cem Concr Res, 33, 2003, pp. 125-132
[2] F.M. Khalaf, A.S. DeVenny, "Properties of new and recycled clay brick
aggregates for use in concrete", J Mater Civil Eng, 17,2005, pp. 456-464
[3] F.M. Khalaf, A.S. DeVenny, "Recycling of demolished masonry rubble
as coarse aggregate in concrete: review", J Mater Civil Eng, 16, 2004,
pp. 331-340
[4] J.S. Ryu, "An experimental study on the effect of recycled aggregate on
concrete properties", Mag Concr Res, 54 , 2002, pp. 7-12
[5] C. Hoffmann, S. Schubert, A. Leemann, "Influence of variations in
composition on the concrete properties and their use as structural
material". Constr Build Mat, 35, 2012, pp. 701-709
[6] M. Etxeberria, E. Vázquez, A. Marí, M. Barra, "Influence of amount of
RCA and production process on properties of recycled aggregate
concrete", Cem Concr Res, 37, 2007, pp 735-742
[7] L. Evangelista, J. De Brito, "Durability performance of concrete made
with fine recycled concrete aggregates", Cement and Concrete
Composites, 32, 2010, pp 9-14
[8] S. Nagataki, "Properties of Recycled Aggregate and Recycled Aggregate
Concrete", International Workshop on Recycled Concrete 2000
[9] T.C. Hansen, H. Narud, "Strength of recycled concrete made from
crushed concrete coarse aggregate", Concrete InternationalÔÇöDesign and
Construction, 5 (1), 1983, pp. 79-83
[10] T.C. Hansen, "Recycled aggregate and recycled aggregate concrete,
Second State-of-the-art Report developments 1945-1985," Materials and
structures, 111, RILEM 1986
[11] S. Hasaba, M. Kawamura, K. Torik, K. Takemoto, "Drying shrinkage
and durability of the concrete made of recycled concrete aggregate",
Transactions of the Japan Concrete Institute, 3, 1981, pp. 55-60
[12] T. Mukai, H. Koizumi "Study on reuse of waste concrete for aggregate
of concrete", Paper Presented at a Seminar on "Energy and Resources
Conservation in Concrete Technology", Japan-US Co-operative Science
Prog, San Francisco,1979
[13] N. Otsuki, S.I Miyazato., W.Yodsudjai "Influence of Recycled
Aggregate on Interfacial Transition Zone, Strength, Chloride Penetration
and Carbonation of Concrete". J Mater Civil Eng, 15, 2003, pp 443-451
[14] D. Kong, T. Lei, J. Zheng, C. Ma, Jun Jiang, J. Jiang, "Effect and
mechanism of surface-coating pozzalanics materials around aggregate on
properties and ITZ microstructure of recycled aggregate concrete".
Constr. and Build. Mat., 24, 2010, pp 701-708
[15] V.W.Y Tam,., C.M. Tam, Y. Wang, "Optimization on proportion for
recycled aggregate in concrete using two-stage mixing approach".
Constr and Build Mat., 21, 2007, pp 1928-1939
[16] S.C Kou., C.S Poon., Etxeberria M., "Influence of recycled aggregates
on long term mechanical properties and pore size distribution of
concrete". Cem Concr Comp, 33, 2011, pp 286.
[17] V. Spaeth, JP Lecomte, MP Delplancke, "Development of cement
materials by incorporation WR additives", RBM, Aedificatio publishers,
16, 2010, pp 315-324
[18] Zhao T, Wittmann F H., Jiang R, Li W, "Application of silane-based
compounds for the production of integral water repellent concrete", HVI,
6th International conference on WR treatment of building materials,
2011, pp 137-144
@article{"International Journal of Architectural, Civil and Construction Sciences:56014", author = "V. Spaeth and A. Djerbi-Tegguer", title = "Treatment of Recycled Concrete Aggregates by Si-Based Polymers", abstract = "The recycling of concrete, bricks and masonry rubble
as concrete aggregates is an important way to contribute to a
sustainable material flow. However, there are still various
uncertainties limiting the widespread use of Recycled Concrete
Aggregates (RCA). The fluctuations in the composition of grade
recycled aggregates and their influence on the properties of fresh and
hardened concrete are of particular concern regarding the use of
RCA. Most of problems occurring while using recycled concrete
aggregates as aggregates are due to higher porosity and hence higher
water absorption, lower mechanical strengths, residual impurities on
the surface of the RCA forming weaker bond between cement paste
and aggregate. So, the reuse of RCA is still limited. Efficient
polymer based treatment is proposed in order to reuse RCA easier.
The silicon-based polymer treatments of RCA were carried out and
were compared. This kind of treatment can improve the properties of
RCA such as the rate of water absorption on treated RCA is
significantly reduced.", keywords = "Recycled concrete aggregates, water absorption,
silicon-based agent and polymer.", volume = "7", number = "1", pages = "32-5", }
