Experimental Research on Fireproofing Measure of Slabs Strengthened by Carbon Fiber Sheet Bonded with Inorganic Adhesive

2014 ◽  
Vol 507 ◽  
pp. 332-336
Author(s):  
Fu Xiong Wan

Because of high temperature above 1000°C on fire, and Oxidation of carbon fiber at high temperature, fireproofing measure should be make to take advantage of inorganic adhesive for slabs strengthened by carbon fiber sheet bonded with the adhesive. The problem of which fireproofing material should be choose and how to make fireproofing measure needs to resolve. Fireproofing test is make for slabs strengthened by carbon fiber sheet bonded with the adhesive protected by Thick-typed Fireproof Coating for steel structure (TFCSS) and Thick-typed Fireproof Coating for tunnel (TFCT). Typical damage state of the two typical coating is compared during and after fire, Temperature field of slab specimen is analyzed, and fireproofing effect is compared. The test results indicate that, steel wire mesh in the middle of coating layer can prevent coating from falling fully, so steel wire mesh is necessary for fireproofing coat which is not too thick. under the protection of fireproof coating with proper construction, TFCT and TFCSS can supply effective fireproofing protection for carbon fiber sheet, but the former is inferior to the latter because the latter is easier to drop and crack in fire. So, TFCT with steel wire mesh can supply the most effective protection for slabs strengthened by carbon fiber sheet bonded with the adhesive.

2013 ◽  
Vol 477-478 ◽  
pp. 972-976
Author(s):  
Fu Xiong Wan

Because of high temperature above 1000°C on fire, and Oxidation of carbon fiber at high temperature, fireproofing measure should be make to take advantage of the inorganic adhesive for beams strengthened by carbon fiber sheet bonded with the adhesive. The problem of which fireproofing material should be choose and how to make fireproofing measure needs to resolve. Fireproofing test is make for beams strengthened by carbon fiber sheet bonded with the adhesive protected by Thick-typed Fireproof Coating for steel structure (TFCSS) and Thick-typed Fireproof Coating for tunnel (TFCT). Typical damage state of the two typical coating is compared on and after fire, Temperature field of specimen is analyzed, and fireproofing effect is compared. The test results indicate that, under the protection of fireproof coating with proper structure, TFCT and TFCSS can supply effective fireproofing protection for carbon fiber sheet, but the former is inferior to the latter because the latter is easier to drop and crack in fire


2012 ◽  
Vol 232 ◽  
pp. 82-85
Author(s):  
Yang Hou Chen

Carbon Fiber-Reinforced Polymer(CFRP) Composite Sheets Have Gained Popularity as a Viable Strengthening Technique for Fractured Concrete Structures. the Behavior of Carbon Fiber Sheet Materials to Cracked Steel Structures Is Quite Different from that of Concrete Structures. More and More Attention Are Paid to Research on Strengthening Steel Structure with Carbon Fiber Sheet. this Paper Presents the Study on the Steel Structure Bonded with Carbon Fiber Sheets. the Infinite Element Analysis Software ANSYS Is Used to Analyze the Effects of Strengthening a Steel Structure. and the Test Results of Crack Specimens Strengthened by Carbon Fiber Sheet Are Given. the Finite Element Results and Test Results Show that the Using of Carbon Fiber Sheet Can Improve Load Bearing of Structure and its Fatigue Life.


2012 ◽  
Vol 562-564 ◽  
pp. 56-59 ◽  
Author(s):  
Jian Zhuang ◽  
Meng Meng Du ◽  
Heng Zhi Cai ◽  
Ya Jun Zhang ◽  
Da Ming Wu

A facile method for manufacturing super hydrophobic surfaces is presented using the stainless steel wire mesh as templates. The rough surfaces of polymers including polycarbonate, polypropylene and PMMA are prepared with hot embossing on different specifications of stainless steel wire mesh. Scanning electron microscopy (SEM) results reveal that the surfaces roughness of the polymers can be controlled by selecting templates. Contact angle measurement shows that the water contact angles(WCA) rise with the increase of surface roughness, especially, the water contact angle on the PC surfaces prepared with specifications of 635mesh screen can reach to 152.3°, alias super hydrophobic surfaces.


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