Dynamic Increase Factor of High Strength Concrete with Silica Fume at High Strain Rate Loading

Abstract:

The dynamic mechanical properties (stress-strain diagram, ultimate stress, ultimate strain and strain rate) and of high strength concrete (HSC) with 5% and 10% silica fume (SF) addition at high strain rate of 10 s^-1 to 10² s^-1 (3.8 MPa, 4.1 MPa and 4.8 MPa) are determined using Split Hopkinson Pressure Bar equipment. The compressive strength of the HSC at design strength of 80 and 90 MPa is also determined. Results show that the compressive strength of the 5%SF and 10%SF HSC are 83 MPa and 92 MPa, respectively. The dynamic stress-strain diagrams show that the higher the pressure load, the higher the values of ultimate dynamic stress, σ_u and the ultimate strain rate, ἐ_u for both percentages of SF addition concrete. The ultimate dynamic stress, σ_u are between 200 – 250 Mpa and the ultimate strain rate, ἐ_u is in the range of 95 s^-1 and 160 s^-1. The ultimate dynamic strain, ε_u between 0.005-0.008 mm/mm. The dynamic increase factors (DIF) of the HSC are more than 2 compare to normal strength concrete.

• Periodical: Materials Science Forum (Volume 857)
• Pages: 299-304
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.857.299
• Online since: May 2016
• Authors: Koh Sin Long, Mudiono Kasmuri, Abu Sufian Zia Hasan, Roszilah Hamid
• Keywords: Compressive Strength, Dynamic Increase Factor, High Strength Concrete, Silica Fume, Strain Rate, Ultimate Dynamic Strain, Ultimate Dynamic Stress

References

[1] H.C. Fu, M.A. Erki and M. Seckin: Review of effects of loading rates on concrete in compression. Journal of Structural Engineering Vol 117(12) (1991), pp.3645-3659.

DOI: 10.1061/(asce)0733-9445(1991)117:12(3645)

[2] CEB. Concrete structures under impact and impulsive loading. Bulletin No. 187, Comité Euro-International du Béton (CEB), Lausanne, Switzerland (1988).

[3] J.W. Tedesco and C.A. Ross: Strain-rate-dependent constitutive equations for concrete. ASME J Press Vessel Technol Vol 120 (1998), pp.398-405.

DOI: 10.1115/1.2842350

[4] T. Tang, L.E. Malvern and D.A. Jenkins: Rate effects in uniaxial dynamic compression of concrete. Journal of Engineering Mechanics Vol 118(1) (1992), pp.108-124.

DOI: 10.1061/(asce)0733-9399(1992)118:1(108)

[5] D.M. Cotsovos and M.N. Pavlovic: Numerical investigation of concrete subjected to compressive impact loading. Part 2: Parametric investigation of factors affecting behaviour at high loading rates. Computers & Structures Vol 86 (2008), pp.164-180.

DOI: 10.1016/j.compstruc.2007.05.015

[6] D.M. Cotsovos and M.N. Pavlovic. Numerical investigation of concrete subjected to high rates of uniaxial tensile loading. International Journal of Impact Engineering Vol 35 (2008), pp.319-335.

DOI: 10.1016/j.ijimpeng.2007.03.006

[7] P.H. Bischoff and S.H. Perry. Compressive behaviour of concrete at high strain rates. Materials and Structures Vol 24 (1991), pp.425-450.

DOI: 10.1007/bf02472016

[8] P.H. Bischoff and S.H. Perry. Impact behavior of plain concrete loaded in uniaxial compression. Journal of Engineering Mechanics Vol 121(6) (1995), pp.685-693.

DOI: 10.1061/(asce)0733-9399(1995)121:6(685)

[9] C.A. Ross, J.W. Tedesco and S.T. Kuennen. Effects of strain rate on concrete strength. ACI Materials Journal Vol 92: (1) (1995), pp.37-47.

[10] C.A. Ross, D.M. Jerome, J.W. Tedesco and Hughes ML. Moisture and strain rate effects on concrete strength. ACI Materials Journal Vol 93(3) (1996), pp.293-300.

[11] C.Y. Tan, R. Hamid and M. Kasmuri Dynamic stress-strain behaviour of steel fiber reinforced high-performance concrete with fly ash. Adv Civil Engg. Article ID 907431 (2012), pp.1-6.

DOI: 10.1155/2012/907431

[12] B. M. Hanumesh, B. K. Varun and B. A. Harish, The Mechanical Properties of Concrete Incorporating Silica Fume as Partial Replacement of Cement, International Journal of Emerging Technology and Advanced Engineering, Vol. 5 (9), (2015), pp.270-275.

[13] B. Riisgaard, T. Ngo, P. Mendis, C.T. Georgakis & H. Stang, Dynamic Increase Factors for High Performance Concrete in Compression using Split Hopkinson Pressure Bar . http: /orbit. dtu. dk/fedora/objects/orbit: 51275/datastreams/file_2899083/content, (2007).