Shear in sand-lightweight and conventional high strength concrete through the push-off test

Figueiredo, Patricia da Silva Pereira; Soares, Thais Amaral; Garcia, Sergio Luis González; Pereira, Allonso Curty da Silva; Trindade, Juliana Corrêa

doi:10.1590/S1983-41952021000300007

Patricia da Silva Pereira Figueiredo

Universidade Estadual do Norte Fluminense Darcy Ribeiro – UENF, Laboratório de Engenharia Civil, Campos dos Goytacazes, RJ, Brasil

https://orcid.org/0000-0002-8820-8898

Thais Amaral Soares

Universidade Estadual do Norte Fluminense Darcy Ribeiro – UENF, Laboratório de Engenharia Civil, Campos dos Goytacazes, RJ, Brasil

https://orcid.org/0000-0003-2198-5489

Sergio Luis González Garcia

Universidade Estadual do Norte Fluminense Darcy Ribeiro – UENF, Laboratório de Engenharia Civil, Campos dos Goytacazes, RJ, Brasil

https://orcid.org/0000-0002-3265-6771

Allonso Curty da Silva Pereira

Universidade Estadual do Norte Fluminense Darcy Ribeiro – UENF, Laboratório de Engenharia Civil, Campos dos Goytacazes, RJ, Brasil

https://orcid.org/0000-0002-1302-0460

Juliana Corrêa Trindade

Universidade Estadual do Norte Fluminense Darcy Ribeiro – UENF, Laboratório de Engenharia Civil, Campos dos Goytacazes, RJ, Brasil

https://orcid.org/0000-0003-1635-667X

Corresponding author: Sergio Luis González Garcia. E-mail: liluiser@yahoo.com.br

Conflict of interest: Nothing to declare.

Authors contributions: PSPF, TAS: Fund acquisition, production, data acquisition and analysis; SLGG: conceptualization, supervision and writing; ACSP: writing; JCT: methodology

Editors: Leandro Mouta Trautwein, José Luiz Antunes de Oliveira e Sousa, Guilherme Aris Parsekian.

Type of Concrete	Water	Materials
Type of Concrete	Water	Cement	Sand	Gravel	Expanded Clay	W/C	SP (%)
Sand-Lightweight (series A and D)	196.5	517	672.1	-	361.9	0.38	-
Conventional 1 (series B)	205	456	682	1005	-	0.45	-
Conventional 2 (series C)	164.4	478	905.3	860	-	0.34	0.83
Conventional 3 (series E)	225.8	511.6	719.77	905.2	-	0.44	1.47

Series	Specimens	f_cm (MPa)	f_{ct, sp} (MPa)	τ_{u, exp} (MPa)	τ_{u, exp}/f_cm	ρ_vf_yd/f_cm
A	L-PO-1- 4.79	30.9	1.9	4.2	0.14	0.16
	L-PO-1- 7.64			4.3	0.14	0.25
	L-PO-1-10.20			5.6	0.18	0.33
	L-PO-1-12.71			5.7	0.18	0.41
B	N-PO-1- 4.79	52.2	3.2	5.8	0.11	0.09
	N-PO-1- 7.64			8.5	0.16	0.15
	N-PO-1-10.20			10.1	0.19	0.20
	N-PO-1-12.71			7.5	0.14	0.24
C	N-PO-2- 4.79	50.3	3.0	6.4	0.13	0.10
	N-PO-2- 7.64			7.5	0.15	0.15
	N-PO-2-10.20			7.8	0.16	0.20
	N-PO-2-12.71			8.9	0.18	0.25
D	L1-PO-1- 4.79	26.2	2.5	3.9	0.15	0.18
	L2-PO-1- 4.79			5.9	0.22	0.18
	L3-PO-1- 4.79			3.4	0.14	0.19
	L1-PO-1- 7.64			5.1	0.19	0.29
	L2-PO-1- 7.64			5.3	0.19	0.28
	L3-PO-1- 7.64			7.2	0.29	0.30
	L1-PO-1-10.20			4.9	0.19	0.39
	L2-PO-1-10.20			5.5	0.20	0.38
	L3-PO-1-10.20			4.5	0.18	0.41
E	N1-PO-3- 4.79	54.0	4.3	5.2	0.09	0.08
	N2-PO-3- 4.79			5.9	0.12	0.10
	N3-PO-3- 4.79			5.5	0.10	0.09
	N1-PO-3- 7.64			6.6	0.11	0.13
	N2-PO-3- 7.64			5.7	0.11	0.15
	N3-PO-3- 7.64			7.2	0.13	0.14
	N2-PO-3-10.20			6.9	0.14	0.20
	N3-PO-3-10.20			7.2	0.13	0.19

Series	Specimens	τ_{u, exp} (MPa)
Series	Specimens	[¹⁵15 P. D. S. Pereira, “Avaliação da teoria atrito-cisalhamento em concreto leve e de alta resistência,” M.S. thesis, Univ. Est. Norte Fluminense, Campos dos Goytacazes, 2016.], [¹⁶16 T. A. Soares, “Teoria atrito-cisalhamento em concretos de diferentes resistências e densidades através do ensaio de Push-off,” M.S. thesis, Univ. Est. Norte Fluminense, Campos dos Goytacazes, 2018.]	[⁸8 A. H. Mattock, W. K. Li, and T. C. Wang, "Shear transfer in lightweight reinforced concrete," PCI J., vol. 21, no. 1, pp. 20–39, 1976.]	[²⁵25 C. H. Raths, "Design proposals for reinforced concrete corbels," PCI J., vol. 21, no. 3, pp. 18–42, 1977.]	[⁶6 L. Emiko, V. Thamaraikkannan, W. T. Huan, and T. Thangayah, "Shear transfer in lightweight concrete," Mag. Concr. Res., vol. 63, no. 6, pp. 393–400, 2011., http://dx.doi.org/10.1680/macr.9.00162. http://dx.doi.org/10.1680/macr.9.00162... ]	[²⁶26 A. H. Mattock, "Shear friction and high-strength concrete," ACI Struct. J., vol. 98, no. 1, pp. 50–59, 2001, http://dx.doi.org/10.14359/10146. http://dx.doi.org/10.14359/10146... ]	[²³23 M. A. Mansur, T. Vinayagam, and K.-H. Tan, "Shear transfer across a crack in reinforced high-strength concrete," J. Mater. Civ. Eng., vol. 20, no. 4, pp. 294–302, 2008, http://dx.doi.org/10.1061/(ASCE)0899-1561(2008)20:4(294). http://dx.doi.org/10.1061/(ASCE)0899-156... ]
A	L-PO-1- 4.79	4.20	5.53	5.78	5.35	-	-
	L-PO-1- 7.64	4.27	7.81	7.31	6.76	-	-
	L-PO-1-10.20	5.56	9.86	8.44	7.81	-	-
	L-PO-1-12.71	5.70	11.87	9.42	8.72	-	-
B	N-PO-1- 4.79	5.84		-	-	9.05	8.95
	N-PO-1- 7.64	8.50	-	-	-	11.33	11.3
	N-PO-1-10.20	10.13	-	-	-	13.38	13.06
	N-PO-1-12.71	7.54	-	-	-	15.39	14.58
C	N-PO-2- 4.79	6.38	-	-	-	8.86	8.78
	N-PO-2- 7.64	7.52	-	-	-	11.14	11.09
	N-PO-2-10.20	7.8	-	-	-	13.19	12.82
	N-PO-2-12.71	8.89	-	-	-	15.2	14.31
D	L1-PO-1- 4.79	3.86	5.53	5.79	4.71	-	-
	L2-PO-1- 4.79	5.90	5.53	5.79	4.77	-	-
	L3-PO-1- 4.79	3.44	5.53	5.79	4.61	-	-
	L1-PO-1- 7.64	5.06	7.81	7.31	5.65	-	-
	L2-PO-1- 7.64	5.25	7.81	7.31	5.71	-	-
	L3-PO-1- 7.64	7.20	7.81	7.31	5.55	-	-
	L1-PO-1-10.20	4.91	9.86	8.44	6.49	-	-
	L2-PO-1-10.20	5.51	9.86	8.44	6.56	-	-
	L3-PO-1-10.20	4.51	9.86	8.44	6.40	-	-
E	N1-PO-3- 4.79	5.21	-	-	-	8.45	8.55
	N2-PO-3- 4.79	5.89	-	-	-	7.84	8.06
	N3-PO-3- 4.79	5.48	-	-	-	8.18	8.33
	N1-PO-3- 7.64	6.58	-	-	-	10.73	10.12
	N2-PO-3- 7.64	5.68	-	-	-	10.12	9.62
	N3-PO-3- 7.64	7.20	-	-	-	10.46	9.90
	N2-PO-3-10.20	6.92	-	-	-	12.17	11.03
	N3-PO-3-10.20	7.23	-	-	-	12.51	11.31

Series	Specimens	τ_{u, cal} [¹⁴14 ACI Committee 318, Building Code Requirements for Structural Concrete, ACI 318M-14, 2014.]	τ_{u, exp}	τ_{u, exp/}τ_{u, cal}	Average	SD
A	L-PO-1-4.79	2.4	4.2	1.7	1.20	0.35
	L-PO-1-7.64	3.9	4.3	1.1
	L-PO-1-10.20	5.2	5.6	1.1
	L-PO-1-12.71	6.5	5.7	0.9
B	N-PO-1-4.79	2.9	5.8	2.0	1.65	0.45
	N-PO-1-7.64	4.6	8.5	1.9
	N-PO-1-10.20	6.1	10.1	1.7
	N-PO-1-12.71	7.6	7.5	1.0
C	N-PO-2-4.79	2.9	6.4	2.2	1.58	0.45
	N-PO-2-7.64	4.6	7.5	1.6
	N-PO-2-10.20	6.1	7.8	1.3
	N-PO-2-12.71	7.6	8.9	1.2
D	L1-PO-1-4.79	2.4	3.9	1.6	1.42	0.47
	L2-PO-1-4.79	2.4	5.9	2.4
	L3-PO-1-4.79	2.4	3.4	1.4
	L1-PO-1-7.64	3.9	5.1	1.3
	L2-PO-1-7.64	3.9	5.3	1.4
	L3-PO-1-7.64	3.9	7.2	1.8
	L1-PO-1-10.20	5.2	4.9	0.9
	L2-PO-1-10.20	5.2	5.5	1.1
	L3-PO-1-10.20	5.2	4.5	0.9
E	N1-PO-1-4.79	2.9	5.2	1.8	1.54	0.37
	N2-PO-1-4.79	2.9	5.9	2.1
	N3-PO-1-4.79	2.9	5.5	1.9
	N1-PO-1-7.64	4.6	6.6	1.4
	N2-PO-1-7.64	4.6	5.7	1.2
	N3-PO-1-7.64	4.6	7.2	1.6
	N2-PO-1-10.20	6.1	6.9	1.1
	N3-PO-1-10.20	6.1	7.2	1.2

Research	Average of τ_u, _exp/τ_u, _cal		Standard Deviation		Coefficient of variation (%)
Research	[²³23 M. A. Mansur, T. Vinayagam, and K.-H. Tan, "Shear transfer across a crack in reinforced high-strength concrete," J. Mater. Civ. Eng., vol. 20, no. 4, pp. 294–302, 2008, http://dx.doi.org/10.1061/(ASCE)0899-1561(2008)20:4(294). http://dx.doi.org/10.1061/(ASCE)0899-156... ]	[¹⁶16 T. A. Soares, “Teoria atrito-cisalhamento em concretos de diferentes resistências e densidades através do ensaio de Push-off,” M.S. thesis, Univ. Est. Norte Fluminense, Campos dos Goytacazes, 2018.]	[²³23 M. A. Mansur, T. Vinayagam, and K.-H. Tan, "Shear transfer across a crack in reinforced high-strength concrete," J. Mater. Civ. Eng., vol. 20, no. 4, pp. 294–302, 2008, http://dx.doi.org/10.1061/(ASCE)0899-1561(2008)20:4(294). http://dx.doi.org/10.1061/(ASCE)0899-156... ]	[¹⁶16 T. A. Soares, “Teoria atrito-cisalhamento em concretos de diferentes resistências e densidades através do ensaio de Push-off,” M.S. thesis, Univ. Est. Norte Fluminense, Campos dos Goytacazes, 2018.]	[²³23 M. A. Mansur, T. Vinayagam, and K.-H. Tan, "Shear transfer across a crack in reinforced high-strength concrete," J. Mater. Civ. Eng., vol. 20, no. 4, pp. 294–302, 2008, http://dx.doi.org/10.1061/(ASCE)0899-1561(2008)20:4(294). http://dx.doi.org/10.1061/(ASCE)0899-156... ]	[¹⁶16 T. A. Soares, “Teoria atrito-cisalhamento em concretos de diferentes resistências e densidades através do ensaio de Push-off,” M.S. thesis, Univ. Est. Norte Fluminense, Campos dos Goytacazes, 2018.]
[⁸8 A. H. Mattock, W. K. Li, and T. C. Wang, "Shear transfer in lightweight reinforced concrete," PCI J., vol. 21, no. 1, pp. 20–39, 1976.]	0.92	1.17	0.18	0.22	19.57	18.51
[²¹21 L. F. Kahn and A. D. Mitchell, "Shear friction tests with high-strength concrete," Struct. J., vol. 99, no. 1, pp. 98–103, 2002.]	0.87	0.95	0.43	0.39	49.43	40.86
[²³23 M. A. Mansur, T. Vinayagam, and K.-H. Tan, "Shear transfer across a crack in reinforced high-strength concrete," J. Mater. Civ. Eng., vol. 20, no. 4, pp. 294–302, 2008, http://dx.doi.org/10.1061/(ASCE)0899-1561(2008)20:4(294). http://dx.doi.org/10.1061/(ASCE)0899-156... ]	0.99	1.06	0.36	0.13	36.36	12.51
[⁶6 L. Emiko, V. Thamaraikkannan, W. T. Huan, and T. Thangayah, "Shear transfer in lightweight concrete," Mag. Concr. Res., vol. 63, no. 6, pp. 393–400, 2011., http://dx.doi.org/10.1680/macr.9.00162. http://dx.doi.org/10.1680/macr.9.00162... ]	0.79	0.96	0.13	0.14	16.46	14.76
[²⁷27 K. A. Harries, G. Zeno, and B. Shahrooz, "Toward an improved understanding of shear-friction behavior," ACI Struct. J., vol. 109, no. 6, pp. 835–844, 2012, http://dx.doi.org/10.14359/51684127. http://dx.doi.org/10.14359/51684127... ]	0.81	0.97	0.18	0.14	22.22	14.16
[²²22 L. H. Shaw and L. H. Sneed, "Interface shear transfer of lightweight-aggregate concretes cast at different times," PCI J., vol. 53, no. 3, pp. 130–144, 2014.]	0.81	0.97	0.15	0.18	18.52	18.23
[²⁸28 S. L. Wermager, “Shear-friction of sand-lightweight clay and slate aggregate concretes with varied reinforcement ratios,” M.S. thesis, Missouri Univ. Sci. Technol., Rolla, MO, 2015.]	0.77	0.96	0.12	0.15	15.58	15.08
[²⁹29 K. Krc, “An investigation of shear-friction of lightweight aggregate concretes,” M.S. thesis, Missouri Univ. Sci. Technol., Rolla, MO, 2015.]	0.82	1.04	0.13	0.16	15.85	15.46
[¹⁵15 P. D. S. Pereira, “Avaliação da teoria atrito-cisalhamento em concreto leve e de alta resistência,” M.S. thesis, Univ. Est. Norte Fluminense, Campos dos Goytacazes, 2016.]	0.65	0.77	0.10	0.09	15.38	12.12
[¹⁶16 T. A. Soares, “Teoria atrito-cisalhamento em concretos de diferentes resistências e densidades através do ensaio de Push-off,” M.S. thesis, Univ. Est. Norte Fluminense, Campos dos Goytacazes, 2018.]	0.63	0.77	0.16	0.22	25.40	28.39
General Average	0.81	0.96

[1] Corresponding author: Sergio Luis González Garcia. E-mail: liluiser@yahoo.com.br

Brasil

Brasil

Shear in sand-lightweight and conventional high strength concrete through the push-off test

Cisalhamento em concreto leve e convencional de alta resistência através do ensaio push-off

abstract: