Shenzhen University

Zhongfeng Zhu

Feng Xing

Yingwu Zhou

Biao Hu

Yufei Wu

Hao Li

Xiaoxu Huang

Zongjun Li

Wenhui Guo

Menghuan Guo

Ruibo Liu

Rui Hu

Disclosed are a steel fiber composite intelligent bar with a sheathing optical cable embedded in an inner core of a rebar, and a fabrication method thereof. The steel fiber composite intelligent bar includes the sheathing optical cable, the rebar, a winding layer, and tightening sheaths, wherein the sheathing optical cable comprises a glass fiber core, a polyimide coating layer, and a polyurethane wrapping layer that are stacked sequentially from inside to outside; the rebar is provided with a notch groove along a length direction; and the sheathing optical cable is embedded in the notch groove in parallel; the winding layer is wound around an outer surface of the rebar, and the winding layer is made of an epoxy resin composite fiber; and the tightening sheaths comprise a first tightening sheath and a second tightening sheath which are sleeved at two ends of the winding layer, respectively.

Steel fiber composite intelligent bar with sheathing optical cable embedded in inner core of rebar, and fabrication method thereof

A method for determining a compressive strength of compression-cast rubber fine aggregate concrete is provided. The method includes: first strength information of normal cast concrete, second strength information of corresponding normal cast rubber fine aggregate concrete, and third strength information of compression-cast rubber fine aggregate concrete; a target equation between a compressive strength of the normal cast concrete, a compressive strength of the compression-cast rubber fine aggregate concrete, the rubber substitution rate and a compression stress is constructed according to the first strength information, the second strength information and the third strength information; target parameters of the compression-cast rubber fine aggregate concrete are acquired, and the target parameters are inputted into the target equation which outputs a current compressive strength of the compression-cast rubber fine aggregate concrete. The compressive strength of the compression-cast rubber fine aggregate concrete can be accurately determined.

Method for determining compressive bearing capacity of compression-cast rubber fine aggregate concrete

A Carbon Fiber Reinforced Polymer (CFRP) concrete composite component with partitioned cathodic protection and an operation and maintenance method thereof are provided. The composite component includes multiple longitudinal reinforcements, in which a first area, a second area and a third area corresponding to underwater, splash and atmosphere are arranged along an extending direction of each longitudinal reinforcement, respectively; a first spiral rib, which is wound around the multiple longitudinal reinforcements in the first area; a second spiral rib, which is wound around the multiple longitudinal reinforcements in the second area; a third spiral rib, which is wound around the multiple longitudinal reinforcements in the third area; a concrete; a power supply, where the first spiral rib, the second spiral rib and the third spiral rib are connected with a positive electrode of the power supply, and the longitudinal reinforcement is connected with a negative electrode of the power supply.

CFRP concrete composite component with partitioned cathodic protection and operation and maintenance method thereof

Disclosed are an alkali-activated geopolymer coating, and a preparation method and use thereof. The alkali-activated geopolymer coating, is prepared by raw materials including the following components: an aluminosilicate mineral, an alkali activator, and a performance additive; wherein the aluminosilicate mineral comprises fly ash, slag, and metakaolin; the performance additive comprises a polymer powder, titanium dioxide, a silicone defoamer, and a water-reducing admixture; and a mass ratio of the aluminosilicate mineral, the alkali activator, and the performance additive is in a range of 100:(60-80):(4-15).

Alkali-activated geopolymer coating, and preparation method and use thereof

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Shenzhen, China

Zhongfeng Zhu