Bing Liu

Guilin University of Technology

In this study, ground granulated blast-furnace slag (GGBS) and waste marble powder (WMP) were used as precursors to prepare slag-waste marble powder-based alkali-activated high-performance concrete (SWAHPC), and the effects and rules of different alkali activator modulus (1.0, 1.2, 1.4, 1.6, 1.8), Na2O dosages (4%, 7%, 10%), and WMP content (replac...

Marble, as a widely used building decoration material, produces a significant amount of waste marble powder (WMP) during processing. To investigate the potential of WMP as a precursor in the preparation of alkali-activated binders, this paper uses WMP as the only precursor and conducts a series of macroscopic mechanical and microscopic characteriza...

This article studied the mechanical properties and constitutive model of fiber‐reinforced coral aggregate concrete (FRCAC). The test results show that basalt fibers, carbon fibers, and polypropylene fibers (BFs, CFs, and PFs) can enhance the cube compressive strength and splitting tensile strength of coral aggregate concrete (CAC), but there are op...

The grouted sleeve connection is one of the most popular approaches to connect the reinforcing bars in the prefabricated structures. Insufficient grouting defects of sleeve connections significantly could decrease the bond strength of the grout materials; therefore, increase the failure risk of connection joints. To obtain a prediction model for th...

Coral concrete structure reinforced with fiber reinforced polymer (FRP) bars is a new type of structure with broad application prospect in island construction. To this end, the failure pattern, midspan deflection, concrete strain, basalt fiber reinforced polymer (BFRP) bars strain and crack characteristics of coral concrete beams reinforced with BF...

In order to study the progressive collapse resistance (PCR) performance of unequal-span reinforced concrete (RC) spatial beam-slab-column substructures, numerical analysis based on the experimental study of the PCR performance of RC structures under central column failure completed by Qian was carried out. A finite element (FE) model was establishe...

To further understand the mechanical properties and anisotropy characteristics of 3D printing PVA fiber reinforced concrete (PFRC). This study first obtained 3D printing PFRC mixes with superior mechanical properties through slump tests, penetration resistance tests, printability tests, and flexural tests. Second, the fiber reinforcement mechanisms...

The rational use of coral aggregate in concrete production is of great significance to reduce the cost and period of island construction. However, using steel rebars in coral concrete structure is impractical given the corrodibility of steel in marine environment. To this end, this study experimented the use of carbon fiber reinforced polymer (CFRP...

With the rapid development of the marine industry, the wide application potential of coral concrete (CC) in the construction of islands has been identified. Adding carbon fiber (CF) into CC can improve its mechanical properties and further expand its application scope. Many concrete members, such as corbels, expressways, and deep beams, are usually...

Carbon fiber–reinforced polymers (CFRPs) have excellent tensile strength and great resistance to chloride ion corrosion. In the 21st century of rapid development in marine construction, the composite structure of CFRP and coral aggregate concrete (CAC) has broad development prospects and great research value. This paper proposes a CFRP–confined cor...

This paper investigated the effect of microfibers (carbon fibers and basalt fibers) and macrofibers (plastic steel fibers) on the mechanical properties of coral concrete. A total of 192 specimens were designed with carbon fibers (CFs), basalt fibers (BFs), and plastic steel fibers (PSFs) as variables. The compressive strength, splitting tensile str...

With the accelerating development of oceanic resources, the broad application potential of coral concrete (CC) on islands and reefs has been identified. Incorporating carbon fiber (CF) into CC improves its mechanical properties and further expands its application scope. Moreover, many concrete members usually suffer combined compression-shear loadi...

Coral materials have been used as concrete aggregate for decades to achieve self-sufficiency of materials and reduce costs of island construction. Considering the aggressive environment of islands, filling concrete into steel tube to produce coral concrete filled steel tube (CCFST) columns is impractical. The combination of concrete and aluminium t...

The mechanical performance of coral concrete under combined compression-shear stresses was investigated using the multifunctional true triaxial testing machine. The shear load–displacement curves, normal displacement-shear displacement curves, and shear failure modes were obtained. Based on the test results, the shear failure modes, deformation pro...

This paper studied the carbonation resistance of recycled aggregate concrete (RAC) designed by two mix proportion design methods through accelerated carbonation test. The investigated variables include water-cement ratio, replacement ratio of recycled coarse aggregate (RCA), and carbonation time. Based on the test results, the effects of water-ceme...

To better explore the mechanical properties of steel slag concrete (SSC) under triaxial compression, true triaxial tests were performed on SSC with three replacement ratios (30%, 70%, 100%) by a servo-controlled setup (TAWZ-5000/3000). Through the test, failure modes, peak stress, and corresponding strain of SSC are obtained. Results show that the...

This study aims to investigate the axial stress–strain behavior of carbon fiber reinforced coral concrete (CFRCC). The investigated variables include concrete strength and CF dosage (0.0%, 0.3%, 0.6%, 1.0%, 1.5%, 2.0% by weight of the cement). Test results show that the failure process of CFRCC can be divided into four phases: linear elastic phase,...

The mechanical performance of steel slag concrete (SSC) under biaxial compression is investigated by a servo-controlled static-dynamic true triaxial machine (TAWZ-5000/3000). Three replacement ratios of steel slags and four kinds of stress ratio (0.25:1, 0.5:1, 0.75:1, and 1:1) are examined in this study. According to the test results, the influenc...

In this study, the impact resistance of coral concrete with different carbon fiber (CF) dosages subjected to drop-weight impact test was investigated. For this purpose, three concrete strength grades (C20, C30, C40) and six CF dosages (0.0%, 0.3%, 0.6%, 1.0%, 1.5%, and 2.0% by weight of the binder) were considered, and a total of 18 groups of carbo...

To investigate the effect of classification of recycled coarse aggregate on the mechanical behaviors of recycled aggregate concrete (RAC), a total of 150 RAC testing blocks were designed based on the Chinese standard GB/T 25177-2010, taking recycled coarse aggregate and substitution ratio as factors in a series of tests, including cubic compression...

This paper studied the shear behavior of three types of recycled aggregate concrete with different replacement levels of recycled coarse aggregate. Sixty cube specimens and thirty beam specimens with uniform depth and varying width were designed to test their mechanical parameters including cube compressive strength, splitting tensile strength, she...