Lik Lam - Academia.edu (original) (raw)
Papers by Lik Lam
Cement and Concrete Research, 2000
Advances in Structural Engineering, 2020
This article presents an investigation into the effects of natural seawater and sea sand on the b... more This article presents an investigation into the effects of natural seawater and sea sand on the behaviour of unconfined and fibre-reinforced polymer-confined concrete. The experimental programme covered compression tests of a large number of standard concrete cylinders, which were prepared from the following four series of concrete: (1) the reference normal concrete, (2) sea-sand concrete, (3) seawater concrete (SwC), and (4) seawater sea-sand concrete. The concrete cylinders were either unconfined or confined with externally wrapped carbon fibre-reinforced polymer jackets to be tested at various ages from the early to the long term. This article presents the results of the first-phase tests, which covered a total of 48 specimens from the four series of concrete, with a half of them tested in the unconfined condition at the ages of 7 and 28 days, and another half tested with either one-ply or two-ply carbon fibre-reinforced polymer jackets at 28 days. The results show that at the ag...
IABSE Symposium Report, 2006
Progress in Structural Engineering and Materials, 2004
... (2). where V v , V l , and V d are the shear strength terms associated with the transverse re... more ... (2). where V v , V l , and V d are the shear strength terms associated with the transverse reinforcement ... 4. Many issues require further research, including the effective FRP stress under a wide range of conditions, the ... Shear repair for reinforced concrete by fiberglass plate bonding. ...
Journal of Structural Engineering, 2004
... LiY.F., LinC.T., and SungY.Y. (2003). A constitutive model for concrete confined with carbon... more ... LiY.F., LinC.T., and SungY.Y. (2003). A constitutive model for concrete confined with carbonfiber reinforced plastics. Mech. Mater., 35, 603619. LillistoneD., and JollyC.K. (2000). An innovative form of reinforcement for concrete columns using advanced composites. Struct. ...
Journal of Composites for Construction, 2009
Journal of Composites for Construction, 2004
One important application of fiber reinforced polymer (FRP) composites is as a confining material... more One important application of fiber reinforced polymer (FRP) composites is as a confining material for concrete in the retrofit of existing concrete columns by the provision of FRP jackets. Such jackets are commonly formed in a wet layup process, with the fibers being ...
Journal of Composites for Construction, 2006
... (2004). Shear strengthening of a PC bridge girder with NSM CFRP rectangular bars. Adv. Stru... more ... (2004). Shear strengthening of a PC bridge girder with NSM CFRP rectangular bars. Adv. Struct. Eng., 7(4), 297309. NordinH., and TaljstenB. (2003). Concrete beams strengthened with prestressed near surface mounted reinforcement. Proc. Sixth Int. ...
Construction and Building Materials, 2001
This paper presents an experimental study on reinforced concrete (RC) cantilever slabs bonded wit... more This paper presents an experimental study on reinforced concrete (RC) cantilever slabs bonded with glass fibre-reinforced polymer (GFRP) strips. Ten tests in three series were conducted on such slabs with different amounts of internal steel reinforcement and external FRP ...
Construction and Building Materials, 2003
Advances in Structural Engineering, 2005
A commonly observed failure mode of reinforced concrete (RC) flexural members strengthened with a... more A commonly observed failure mode of reinforced concrete (RC) flexural members strengthened with a fibre reinforced polymer (FRP) plate bonded to their tension face involves debonding that initiates at a major flexural or flexural shear crack and propagates towards a plate end, which has often been referred to as intermediate crack (IC) debonding. This paper first presents the results of IC debonding tests conducted on eighteen cantilever slabs in which IC debonding initiated at or near the fixed end, and four simply-supported slabs in three-point bending where IC debonding initiated at the load position. A number of factors are covered by these tests, including the type of FRP material, the width of FRP strip, the length of FRP strip, the slab width, the concrete strength, the longitudinal steel ratio, the concrete cover, and pre-cracking of concrete. The test results are next used to assess the accuracy of four available strength models that can be used to design against IC debondi...
Cement and Concrete Research, 1998
Journal of Zhejiang University-SCIENCE A, 2008
Journal of Materials in Civil Engineering, 1999
ABSTRACT
Cement and Concrete Research, 2000
Advances in Structural Engineering, 2020
This article presents an investigation into the effects of natural seawater and sea sand on the b... more This article presents an investigation into the effects of natural seawater and sea sand on the behaviour of unconfined and fibre-reinforced polymer-confined concrete. The experimental programme covered compression tests of a large number of standard concrete cylinders, which were prepared from the following four series of concrete: (1) the reference normal concrete, (2) sea-sand concrete, (3) seawater concrete (SwC), and (4) seawater sea-sand concrete. The concrete cylinders were either unconfined or confined with externally wrapped carbon fibre-reinforced polymer jackets to be tested at various ages from the early to the long term. This article presents the results of the first-phase tests, which covered a total of 48 specimens from the four series of concrete, with a half of them tested in the unconfined condition at the ages of 7 and 28 days, and another half tested with either one-ply or two-ply carbon fibre-reinforced polymer jackets at 28 days. The results show that at the ag...
IABSE Symposium Report, 2006
Progress in Structural Engineering and Materials, 2004
... (2). where V v , V l , and V d are the shear strength terms associated with the transverse re... more ... (2). where V v , V l , and V d are the shear strength terms associated with the transverse reinforcement ... 4. Many issues require further research, including the effective FRP stress under a wide range of conditions, the ... Shear repair for reinforced concrete by fiberglass plate bonding. ...
Journal of Structural Engineering, 2004
... LiY.F., LinC.T., and SungY.Y. (2003). A constitutive model for concrete confined with carbon... more ... LiY.F., LinC.T., and SungY.Y. (2003). A constitutive model for concrete confined with carbonfiber reinforced plastics. Mech. Mater., 35, 603619. LillistoneD., and JollyC.K. (2000). An innovative form of reinforcement for concrete columns using advanced composites. Struct. ...
Journal of Composites for Construction, 2009
Journal of Composites for Construction, 2004
One important application of fiber reinforced polymer (FRP) composites is as a confining material... more One important application of fiber reinforced polymer (FRP) composites is as a confining material for concrete in the retrofit of existing concrete columns by the provision of FRP jackets. Such jackets are commonly formed in a wet layup process, with the fibers being ...
Journal of Composites for Construction, 2006
... (2004). Shear strengthening of a PC bridge girder with NSM CFRP rectangular bars. Adv. Stru... more ... (2004). Shear strengthening of a PC bridge girder with NSM CFRP rectangular bars. Adv. Struct. Eng., 7(4), 297309. NordinH., and TaljstenB. (2003). Concrete beams strengthened with prestressed near surface mounted reinforcement. Proc. Sixth Int. ...
Construction and Building Materials, 2001
This paper presents an experimental study on reinforced concrete (RC) cantilever slabs bonded wit... more This paper presents an experimental study on reinforced concrete (RC) cantilever slabs bonded with glass fibre-reinforced polymer (GFRP) strips. Ten tests in three series were conducted on such slabs with different amounts of internal steel reinforcement and external FRP ...
Construction and Building Materials, 2003
Advances in Structural Engineering, 2005
A commonly observed failure mode of reinforced concrete (RC) flexural members strengthened with a... more A commonly observed failure mode of reinforced concrete (RC) flexural members strengthened with a fibre reinforced polymer (FRP) plate bonded to their tension face involves debonding that initiates at a major flexural or flexural shear crack and propagates towards a plate end, which has often been referred to as intermediate crack (IC) debonding. This paper first presents the results of IC debonding tests conducted on eighteen cantilever slabs in which IC debonding initiated at or near the fixed end, and four simply-supported slabs in three-point bending where IC debonding initiated at the load position. A number of factors are covered by these tests, including the type of FRP material, the width of FRP strip, the length of FRP strip, the slab width, the concrete strength, the longitudinal steel ratio, the concrete cover, and pre-cracking of concrete. The test results are next used to assess the accuracy of four available strength models that can be used to design against IC debondi...
Cement and Concrete Research, 1998
Journal of Zhejiang University-SCIENCE A, 2008
Journal of Materials in Civil Engineering, 1999
ABSTRACT