CN103983570A - Device and method for testing shear bond strength of structural adhesive between reinforcement material and concrete - Google Patents

Device and method for testing shear bond strength of structural adhesive between reinforcement material and concrete Download PDF

Info

Publication number
CN103983570A
CN103983570A CN201410257427.XA CN201410257427A CN103983570A CN 103983570 A CN103983570 A CN 103983570A CN 201410257427 A CN201410257427 A CN 201410257427A CN 103983570 A CN103983570 A CN 103983570A
Authority
CN
China
Prior art keywords
concrete
cover plate
external corner
supporting plate
test block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201410257427.XA
Other languages
Chinese (zh)
Other versions
CN103983570B (en
Inventor
成勃
姜丽萍
成涛
李潭
刘伟
李俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Provincial Academy of Building Research
Original Assignee
Shandong Provincial Academy of Building Research
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Provincial Academy of Building Research filed Critical Shandong Provincial Academy of Building Research
Publication of CN103983570A publication Critical patent/CN103983570A/en
Application granted granted Critical
Publication of CN103983570B publication Critical patent/CN103983570B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

一种加固材料与混凝土间结构胶抗剪粘结强度测试装置及方法,其特征是它包括设置在上混凝土试块外缘的上挂架以及下混凝土试块外缘的下挂架,上挂架底面中间位置设置V形凸起,下挂架顶面中间位置设置V形凹槽与上挂架的V形凸起配合,V形凸起在凹槽内绕接触线枢转一定角度。测试方法的具体步骤是将上挂架放置到下挂架上,使V形凸起放置在V形凹槽中并使用定位条固定;用结构胶将加固材料粘贴到试块侧面,加固材料在两试块的粘贴面积相等,待结构胶完全固化后,拆除混凝土试块一侧的全部定位盖板和全部定位条,施加压力使混凝土试块有绕V形凸起接触线枢转的趋势,从而产生剪切粘结力并达到极限值被破坏时,即可算出抗剪粘结强度。

A device and method for testing the shear bond strength of structural adhesive between reinforcement materials and concrete, characterized in that it includes an upper hanger arranged on the outer edge of the upper concrete test block and a lower hanger arranged on the outer edge of the lower concrete test block. A V-shaped protrusion is arranged at the middle position of the bottom surface of the rack, and a V-shaped groove is arranged at the middle position of the top surface of the lower hanger to cooperate with the V-shaped protrusion of the upper hanger, and the V-shaped protrusion pivots at a certain angle around the contact line in the groove. The specific steps of the test method are to place the upper hanger on the lower hanger so that the V-shaped protrusion is placed in the V-shaped groove and fixed with a positioning strip; the reinforcement material is pasted to the side of the test block with structural glue, and the reinforcement material is placed on the side of the test block. The sticking areas of the two test blocks are equal. After the structural adhesive is completely cured, remove all the positioning covers and all the positioning strips on one side of the concrete test block, and apply pressure so that the concrete test block has a tendency to pivot around the V-shaped convex contact line. Thus, when the shear bond force is generated and reaches the limit value and is destroyed, the shear bond strength can be calculated.

Description

加固材料与混凝土间结构胶抗剪粘结强度测试装置及方法Device and method for testing shear bond strength of structural adhesive between reinforcement material and concrete

本申请是申请日为2012年11月28日,申请号为2012104939575,名称为加固材料与混凝土间结构胶抗剪粘结强度测试装置及方法的中国发明专利申请的分案申请。 This application is a divisional application of a Chinese invention patent application with an application date of November 28, 2012, an application number of 2012104939575, and a Chinese invention patent application titled a device and method for testing the shear bond strength of structural adhesive between reinforcement materials and concrete.

技术领域 technical field

本发明主要用于建设科学技术领域中,在混凝土结构加固改造中,结构胶粘结加固材料和混凝土基材时的测试其抗剪粘结强度的装置及方法。 The invention is mainly used in the field of construction science and technology, and in the reinforcement and transformation of concrete structures, the device and method for testing the shear bond strength of structural glue bonding reinforcement materials and concrete substrates.

背景技术 Background technique

混凝土结构工程加固改造项目中,有需要在混凝土基材上粘贴钢板、复合增强纤维等加固材料的技术措施。此类措施通过结构胶将加固材料粘贴到混凝土基体上,充分发挥加固材料抗拉强度高的特点,达到加固补强的目的。此项技术的关键在于加固材料与混凝土基体的协调变形与共同受力,两者之间协调变形则完全依靠结构胶提供的剪切粘结力提供,因而抗剪粘结强度是衡量粘接材料性能的重要指标。加固材料与混凝土间结构胶抗剪粘结强度能最直接反映结构胶的性能,目前尚无相应的测定方法。 In the reinforcement and renovation project of concrete structure engineering, there are technical measures that need to paste reinforcement materials such as steel plates and composite reinforcing fibers on the concrete substrate. Such measures use structural glue to paste the reinforcement material on the concrete matrix, give full play to the characteristics of high tensile strength of the reinforcement material, and achieve the purpose of reinforcement. The key to this technology lies in the coordinated deformation and joint stress of the reinforcement material and the concrete matrix. The coordinated deformation between the two is completely provided by the shear bond force provided by the structural adhesive. Therefore, the shear bond strength is a measure of the bonded material. important indicator of performance. The shear bond strength of the structural adhesive between the reinforcement material and concrete can most directly reflect the performance of the structural adhesive, and there is no corresponding measurement method at present.

在国家标准《混凝土结构加固设计规范》GB50367-2006、《建筑结构加固工程施工质量验收规范》GB50550-2010、标准化协会标准《碳纤维片材加固混凝土结构技术规程》CECS146:2003(2007年版)中,关于结构胶的性能指标,有正拉粘结强度、钢—钢抗剪强度等性能,但均不能反映加固材料与基材的抗剪粘结强度这一重要指标。标准附录中有“结构胶粘合加固材料与基材的正拉粘结强度试验室测定方法”,用以评价结构胶的正拉粘结强度,但是测试时的结构胶应力状态(垂直于加固材料表面的正应力)与结构正常受力时的应力状态(平行于加固材料表面的剪应力)并不相同,正拉粘结强度与抗剪粘结强度反映的是结构胶两个不同方面的粘结性能。 In the national standard "Code for Design of Concrete Structure Reinforcement" GB50367-2006, "Code for Construction Quality Acceptance of Building Structure Reinforcement Engineering" GB50550-2010, Standardization Association Standard "Technical Regulations for Carbon Fiber Sheet Reinforced Concrete Structure" CECS146:2003 (2007 edition), Regarding the performance indicators of structural adhesives, there are properties such as positive tensile bond strength and steel-steel shear strength, but none of them can reflect the important index of shear bond strength between the reinforcement material and the base material. In the appendix of the standard, there is "Laboratory Determination Method for Normal Tensile Bond Strength of Structural Adhesive Adhesive Reinforcement Materials and Substrates", which is used to evaluate the positive tensile bond strength of structural adhesives, but the stress state of structural adhesives during the test (perpendicular to the reinforcement The normal stress on the surface of the material) is not the same as the stress state (shear stress parallel to the surface of the reinforced material) when the structure is normally stressed. The normal tensile bond strength and the shear bond strength reflect the two different aspects of the structural adhesive. Adhesive properties.

在国家标准《胶粘剂拉伸剪切强度的测定(刚性材料对刚性材料)》GB/T7124-2008中有胶粘剂拉伸剪切强度(刚性材料对刚性材料)的测试方法,该方法是在平行于粘接面的试样主轴方向上施加拉伸力,检测出刚性材料单搭接粘接处(即钢片对钢片或纤维板对纤维板)的剪切应力,在一定程度上反映了结构胶材料本身的粘结强度。但在实际加固工程中结构正常受力时,结构胶最直接的粘结性能指标是所粘结的加固材料与混凝土基材间的抗剪粘结强度,由于混凝土材料抗拉强度较低,无法按该标准制作加固材料对混凝土薄板的试样,故此强度指标无法通过该标准进行测试。该标准中测试的结构胶粘结性能指标仅仅是加固材料与加固材料之间的粘结抗剪强度,故该标准中明确注明了“从单搭接胶结件得到的剪切强度值不能作为结构胶接的设计应力”。 In the national standard "Determination of Tensile Shear Strength of Adhesives (Rigid Materials to Rigid Materials)" GB/T7124-2008, there is a test method for adhesive tensile shear strength (rigid materials to rigid materials), which is parallel to The tensile force is applied in the direction of the main axis of the sample on the bonding surface, and the shear stress of the single lap joint of the rigid material (that is, the steel sheet to the steel sheet or the fiberboard to the fiberboard) is detected, which reflects the structural adhesive material to a certain extent. own bond strength. However, when the structure is under normal stress in the actual reinforcement project, the most direct bond performance index of the structural adhesive is the shear bond strength between the reinforced material to be bonded and the concrete substrate. Due to the low tensile strength of the concrete material, it cannot According to this standard, the reinforcement material is used to make samples of concrete thin slabs, so the strength index cannot be tested by this standard. The structural adhesive bonding performance index tested in this standard is only the bond shear strength between the reinforcement material and the reinforcement material, so the standard clearly states that "the shear strength value obtained from a single Design Stresses for Structural Bonds".

当前有发明专利“剪切强度测试仪及剪切测试方法”(专利号:ZL201010107968.6),是在工程结构加固改造项目中混凝土结构采用浅层嵌固高强板条或表面粘贴高强板条时,检测板条与原混凝土结构之间粘结剪切强度的专用仪器和方法。该设备分为测力杆、剪切支架、示数仪三部分,通过旋紧测力杆螺栓,使剪切支架端部张开,利用传力靴抵住粘结完成的板条并对其推压,使之与混凝土界面粘结破坏,采用测力杆内设的拉压传感器测试剪切力的大小,由示数仪显示最大剪切力。该发明专利采用局部破损的手段,在被加固的构件上切割出一定面积的加固材料,现场测试该面积范围内加固材料与基材的抗剪粘结强度,可以反映粘贴加固的施工质量。但是该发明专利仅能检测具有一定厚度的加固材料的粘结剪切强度,需要传力靴抵住并推动板条使之与混凝土基材间产生剪切破坏,对于厚度较小的板条(1~2mm)及纤维布(0.111~0.167mm)等加固材料时,由于传力靴难以做到仅抵住加固材料而不接触混凝土,往往无法推动板条或纤维布使之剪切破坏,该方法的使用具有一定的局限性;采用该发明专利测试时加固材料受压力作用,与实际工程中受拉力的情况不符;采用该发明专利时需对加固材料进行切割,不仅对加固材料和被加固构件有一定的损伤,切割时产生的高温会影响粘接材料的性能,影响测试结果。故该发明专利不能完全适应加固材料与混凝土间结构胶抗剪粘结强度的测试。 At present, there is an invention patent "shear strength tester and shear test method" (patent number: ZL201010107968.6), which is used when the concrete structure adopts shallow embedded high-strength slats or surface-attached high-strength slats in engineering structure reinforcement and transformation projects , a special instrument and method for testing the shear strength of the bond between the lath and the original concrete structure. The equipment is divided into three parts: the force measuring rod, the shearing bracket, and the indicator. By tightening the bolt of the force measuring rod, the end of the shearing bracket is opened, and the force transmission shoe is used to hold the bonded slats and align them. Push and press to make the bond with the concrete interface broken, use the tension and pressure sensor installed in the force measuring rod to test the magnitude of the shear force, and the indicator will display the maximum shear force. The invention patent adopts the method of local damage, cuts a certain area of reinforcement material on the reinforced component, and tests the shear bond strength between the reinforcement material and the base material within the area range, which can reflect the construction quality of pasting reinforcement. However, this invention patent can only detect the bonded shear strength of reinforcement materials with a certain thickness. It is necessary for the force-transfer shoe to resist and push the slab to cause shear failure between it and the concrete base material. For slats with a smaller thickness ( 1~2mm) and fiber cloth (0.111~0.167mm) and other reinforcing materials, since it is difficult for the force transmission boots to only touch the reinforcing material without contacting the concrete, it is often impossible to push the slats or fiber cloth to cause shear failure. The use of the method has certain limitations; when using this invention patent, the reinforced material is subjected to pressure, which is inconsistent with the tension in the actual project; when using this invention patent, the reinforced material needs to be cut, not only the reinforced material and the reinforced material The components are damaged to a certain extent, and the high temperature generated during cutting will affect the performance of the bonding material and affect the test results. Therefore, this invention patent cannot fully adapt to the test of the shear bond strength of the structural adhesive between the reinforcement material and the concrete.

发明内容 Contents of the invention

为了弥补结构胶粘合加固材料与混凝土基材时抗剪粘结强度检测方法的不足,保证结构胶的粘结性能和加固材料与结构胶的匹配性,保证加固工程质量,本发明提供了一种加固材料与混凝土间结构胶抗剪粘结强度的测试装置及方法。 In order to make up for the deficiency of the detection method of the shear bond strength when the structural adhesive is bonded to the reinforcement material and the concrete base material, to ensure the bonding performance of the structural adhesive and the matching between the reinforcement material and the structural adhesive, and to ensure the quality of the reinforcement project, the present invention provides a A device and method for testing the shear bond strength of a structural adhesive between reinforcement materials and concrete.

本发明所采取的技术措施是,一种加固材料与混凝土间结构胶抗剪粘结强度测试装置,其特征是它包括设置在上混凝土试块外缘的上挂架以及下混凝土试块外缘的下挂架,上挂架底面中间位置设置V形凸起,下挂架顶面中间位置设置V形凹槽与上挂架的V形凸起配合, V形凸起在凹槽内绕接触线枢转一定角度。 The technical measure adopted by the present invention is a test device for the shear bond strength of the structural adhesive between the reinforcement material and the concrete, which is characterized in that it includes an upper hanger arranged on the outer edge of the upper concrete test block and an outer edge of the lower concrete test block. For the lower hanger, a V-shaped protrusion is set in the middle of the bottom surface of the upper hanger, and a V-shaped groove is set in the middle of the top surface of the lower hanger to cooperate with the V-shaped protrusion of the upper hanger, and the V-shaped protrusion is in contact with the groove. The line pivots at an angle.

本方案的具体特点还有,所述上挂架包括位于混凝土试块上方的阳角盖板和位于混凝土试块下方的刀口托板,阳角盖板和刀口托板通过至少一条上连接条连接在一起,在刀口托板底面设置V形凸起。 The specific feature of this scheme is that the upper hanger includes an external corner cover plate located above the concrete test block and a knife-edge support plate located below the concrete test block, and the external corner cover plate and the knife-edge support plate are connected by at least one upper connecting bar Together, a V-shaped protrusion is set on the bottom surface of the knife-edge supporting plate.

所述下挂架包括位于上部的刀槽盖板和位于下部的阳角托板,刀槽盖板和阳角托板通过至少一条下连接条连接在一起;在刀槽盖板顶面设置V形凹槽,V形凸起及V形凹槽均与阳角盖板平行布置。 The lower hanger includes a sipe cover at the top and a male corner support at the bottom, the sipe cover and the male corner support are connected together by at least one lower connecting bar; V is set on the top surface of the sipe cover The V-shaped groove, the V-shaped protrusion and the V-shaped groove are all arranged in parallel with the male corner cover plate.

上连接条为两条且均匀分布在阳角盖板和刀口托板的与V形凹槽平行的侧面上;下连接条为两条且均匀分布在刀槽盖板和阳角托板的与V形凹槽平行的侧面上。 There are two upper connecting bars and they are evenly distributed on the sides parallel to the V-shaped groove of the male corner cover plate and the knife-edge supporting plate; there are two lower connecting bars and they are evenly distributed on the sides of the knife groove cover plate and the male corner supporting plate. V-shaped grooves on parallel sides.

在混凝土试块上位于阳角盖板和阳角托板对侧分别设置定位盖板。 On the concrete test block, positioning cover plates are respectively arranged on the opposite sides of the external corner cover plate and the external corner supporting plate.

上挂架和下挂架四角设置四根定位条,定位条上设置四个定位孔,穿过定位孔的螺栓分别旋入阳角盖板,刀口托板,刀槽盖板和阳角托板上对应设置的螺纹孔中将阳角盖板,刀口托板,刀槽盖板,阳角托板和定位盖板整体地固定在一起。 Four positioning strips are set at the four corners of the upper hanger and the lower hanger, and four positioning holes are set on the positioning strips, and the bolts passing through the positioning holes are respectively screwed into the male corner cover, knife-edge supporting plate, knife groove cover and male corner supporting plate The male angle cover plate, the knife edge supporting plate, the knife groove cover plate, the male angle supporting plate and the positioning cover plate are integrally fixed together in the correspondingly provided threaded holes.

连接条及定位条的螺栓孔均为长条形,可以调整托板与盖板的间距,以便适应存在制作误差的混凝土试块。 The bolt holes of the connecting strip and the positioning strip are all elongated, and the distance between the supporting plate and the cover plate can be adjusted so as to adapt to the concrete test block with manufacturing errors.

V形凸起的高度为10mm,角度为80°~90°;V形凹槽凹进的深度为3mm,角度为110°~120°。 The height of the V-shaped protrusion is 10mm, and the angle is 80°-90°; the depth of the V-shaped groove is 3mm, and the angle is 110°-120°.

本发明还提供一种加固材料与混凝土间结构胶抗剪粘结强度测试方法,其特征是:在两个混凝土试块上设置如权利要求1所述的上挂架和下挂架;将上挂架放置到下挂架上使V形凸起放置在V形凹槽中,并使用定位条将上挂架和下挂架临时固定;采用结构胶将加固材料粘贴到试块侧面,加固材料在两试块的粘贴面积相等,待结构胶完全固化并在常温下养护一周后,拆除混凝土试块一侧的全部定位盖板和全部定位条,利用压力机或其它加荷设备产生的压力施加在阳角盖板和阳角托板上,使混凝土试块有绕V形凸起接触线枢转的趋势,加固材料阻止其枢转,从而在加固材料与混凝土基材之间产生剪切粘结力;当结构胶的剪切粘结力达到极限值并最终破坏时,即可通过极限压力和破坏的粘结面积计算出抗剪粘结强度。 The present invention also provides a method for testing the shear bond strength of the structural adhesive between the reinforcement material and the concrete, which is characterized in that an upper hanger and a lower hanger as claimed in claim 1 are set on two concrete test blocks; The hanger is placed on the lower hanger so that the V-shaped protrusion is placed in the V-shaped groove, and the upper hanger and the lower hanger are temporarily fixed with the positioning strip; the reinforcement material is pasted to the side of the test block with structural glue, and the reinforcement material When the sticking areas of the two test blocks are equal, after the structural adhesive is completely cured and cured at room temperature for a week, remove all the positioning covers and all the positioning strips on one side of the concrete test block, and use the pressure generated by the press or other loading equipment to apply On the external corner cover plate and the external corner supporting plate, the concrete test block has a tendency to pivot around the V-shaped convex contact line, and the reinforcement material prevents it from pivoting, thereby generating shear adhesion between the reinforcement material and the concrete substrate. Bond strength; when the shear bond strength of the structural adhesive reaches the limit value and finally fails, the shear bond strength can be calculated from the ultimate pressure and the damaged bond area.

它的具体特点还有,V形凸起位于混凝土试块底面中部的下方,剪切粘结力与加荷设备的压力大小相等。 Its specific feature is that the V-shaped protrusion is located below the middle of the bottom surface of the concrete test block, and the shear bonding force is equal to the pressure of the loading equipment.

本发明的有益效果是:上挂架和下挂架形成可以固定混凝土标准试块的空间框架,并且形成空间杠杆体系,在加载设备对阳角盖板施压以后,混凝土试块有绕刀口托板V形凸起端部枢转的趋势,使加固材料与混凝土试块表面间产生剪切力。定位条的作用是临时固定混凝土试块,保证在混凝土试块侧面粘贴加固材料、结构胶养护和试验装置在试验机就位的过程中,混凝土试块不产生相对位移,结构胶不被扰动。连接条、定位条设长条形螺栓孔,其作用是可以调整盖板间距,以便适应存在制作误差的混凝土试块。在测试过程中,连接条不受力。采用试验机或其它加荷设备对阳角盖板和阳角托板施压后,加固材料与混凝土基材之间产生剪切粘结力τ(y),其受力状态与工程中的受力状态一致。试验装置的刀口托板V型凸起接触线位于混凝土试块的中部,剪切粘结力τ(y)的合力T与试验机的压力大小相等。当结构胶的剪切粘结力达到极限值并最终破坏时,即可通过极限压力N和破坏的粘结面积A计算出抗剪粘结强度f τ。该设备具有构造简单,操作简便,安全可靠,易于维护等优点,测试结构胶粘合加固材料与混凝土基材的抗剪粘结强度时,可采用强度和集料配比与待加固的构件混凝土相近的混凝土试块,以便更好地评价结构胶应用于实际工程时的粘结性能及其与加固材料的适配性。该测试方法试验数据稳定,试验方法可靠,适用于测试加固材料与混凝土间结构胶抗剪粘结强度的测试。 The beneficial effects of the present invention are: the upper hanger and the lower hanger form a space frame that can fix the concrete standard test block, and form a space lever system. The tendency of the plate V-shaped protruding ends to pivot creates a shear force between the reinforcement material and the surface of the concrete test block. The function of the positioning strip is to temporarily fix the concrete test block, so as to ensure that the concrete test block does not produce relative displacement and the structural adhesive is not disturbed during the process of pasting reinforcement materials on the side of the concrete test block, curing the structural adhesive and testing the device in place on the testing machine. Connecting strips and positioning strips are provided with strip-shaped bolt holes, whose function is to adjust the spacing of the cover plates so as to adapt to the concrete test blocks with manufacturing errors. During the test, the connection bar is not stressed. After the test machine or other loading equipment is used to apply pressure to the external corner cover plate and the external corner support plate, the shear bond force τ(y) will be generated between the reinforcement material and the concrete base material, and its stress state is the same as that in the project Power status is the same. The V-shaped convex contact line of the knife-edge support plate of the test device is located in the middle of the concrete test block, and the resultant force T of the shear bond force τ(y) is equal to the pressure of the test machine. When the shear bond strength of the structural adhesive reaches the limit value and finally fails, the shear bond strength f τ can be calculated from the limit pressure N and the damaged bond area A. The equipment has the advantages of simple structure, easy operation, safety and reliability, and easy maintenance. When testing the shear bond strength between the structural adhesive reinforcement material and the concrete base material, the strength and aggregate ratio can be used to match the component concrete to be reinforced. Similar concrete test blocks are used to better evaluate the bonding performance of structural adhesives and their compatibility with reinforcement materials when they are applied to actual projects. The test data of the test method is stable, the test method is reliable, and it is suitable for testing the shear bond strength of the structural adhesive between the reinforcement material and the concrete.

受力情况分析如下图4所示,加载设备压力由阳角盖板(阳角托板)传至混凝土试块,然后传至刀口托板(刀槽盖板),连接条在试验过程中不受力。在压力的作用下,试块有围绕V形凸起接触线(O处)枢转的趋势,加固材料产生拉力T阻止其转动,加固材料与混凝土基材之间产生剪切粘结力。试验过程中剪切粘结力的合力(加固材料拉力)、加载设备压力绕V形凸起接触线力矩平衡,试验过程中直至破坏,结构胶剪切变形极小,故试块枢转极小,剪切粘结力的合力、加载设备压力始终平行。试验破坏时,加载设备极限压力为N,结构胶剪切力合力(加固材料拉力)为T,试验装置的刀口托板V型凸起接触线位于混凝土试块的中部,T、N的力臂均为75mm,由力矩平衡方程: The analysis of the force situation is shown in Figure 4 below. The pressure of the loading equipment is transmitted from the male corner cover plate (male corner support plate) to the concrete test block, and then to the knife edge support plate (knife groove cover plate). Force. Under the action of pressure, the test block has a tendency to pivot around the V-shaped convex contact line (at O), the reinforcement material generates a tensile force T to prevent its rotation, and a shear bonding force is generated between the reinforcement material and the concrete substrate. During the test, the resultant force of the shear bonding force (the tension of the reinforcing material) and the pressure of the loading equipment are balanced around the moment of the V-shaped convex contact line. During the test, until the failure, the shear deformation of the structural adhesive is extremely small, so the pivot of the test block is extremely small , the resultant shear bond force and the loading equipment pressure are always parallel. When the test is broken, the ultimate pressure of the loading equipment is N, the resultant shear force of the structural adhesive (strengthening material tension) is T, the V-shaped convex contact line of the knife-edge support plate of the test device is located in the middle of the concrete test block, and the moment arms of T and N Both are 75mm, by the moment balance equation:

75×N=75×T    有:T=N 75×N=75×T has: T=N

结构胶剪切力合力(加固材料拉力)T与结构胶剪切粘结应力τ(y)的关系为: The relationship between the resultant shear force of the structural adhesive (the tensile force of the reinforcement material) T and the shear bonding stress τ(y) of the structural adhesive is:

结构胶剪切粘结应力τ(y)完全由结构胶承担,其受力状态与工程中的受力状态一致。 The shear bonding stress τ(y) of the structural adhesive is completely borne by the structural adhesive, and its stress state is consistent with that in engineering.

试件破坏时,加固材料与混凝土间结构胶抗剪粘结强度为: When the specimen is damaged, the shear bond strength of the structural adhesive between the reinforcement material and the concrete is:

      式中:A为粘结面面积。 In the formula: A is the bonding surface area.

试验验证情况Test verification

采用本装置及方法,对山东省建筑科学研究院研制生产的KY-5型结构胶进行检验,检验时选用强度等级为C20和C40的两种混凝土试块,以代表两种不同的工程情况。 Using this device and method, the KY-5 structural adhesive developed and produced by Shandong Provincial Academy of Building Sciences was tested. Two concrete test blocks with strength grades of C20 and C40 were selected during the test to represent two different engineering conditions.

选用强度等级为C20混凝土试块的检测数据如下: The test data of the concrete test blocks with strength grade C20 are as follows:

选用强度等级为C40混凝土试块的检测数据如下: The test data of the concrete test blocks with strength grade C40 are as follows:

试验结论 Test Conclusions

1 破坏状态 1 broken state

本方法测得的破坏状态有别于《混凝土结构加固设计规范》GB50367-2006、《建筑结构加固工程施工质量验收规范》GB50550-2010、标准化协会标准《碳纤维片材加固混凝土结构技术规程》CECS146:2003(2007年版)等标准中采用正拉粘结强度试验时的破坏形态(一般为混凝土基层受拉破坏);也有别于《胶粘剂拉伸剪切强度的测定(刚性材料对刚性材料)》GB/T7124-2008中胶粘剂拉伸剪切强度(刚性材料对刚性材料)试验时的破坏状态(一般为结构胶与刚性材料粘结面剪切破坏或结构胶层间剪切破坏)。 The damage state measured by this method is different from "Code for Design of Concrete Structure Reinforcement" GB50367-2006, "Code for Construction Quality Acceptance of Building Structure Reinforcement Engineering" GB50550-2010, Standardization Association Standard "Technical Regulations for Concrete Structure Strengthened by Carbon Fiber Sheet" CECS146: In 2003 (2007 edition) and other standards, the failure mode (generally the tensile failure of the concrete base) is adopted in the normal tensile bond strength test; /T7124-2008 The failure state of the adhesive tensile shear strength (rigid material to rigid material) test (generally, the shear failure of the bonding surface between the structural adhesive and the rigid material or the shear failure between the structural adhesive layers).

本方法测得的破坏状态为混凝土表层剪切破坏(混凝土强度较低时)或混凝土与结构胶粘接面界面剪切破坏(混凝土强度较高时),与工程结构中的破坏形态相同,符合工程实际情况。(如图5) The failure state measured by this method is the shear failure of the concrete surface (when the concrete strength is low) or the shear failure of the interface between concrete and structural adhesive (when the concrete strength is high), which is the same as the failure form in the engineering structure, which is in line with The actual situation of the project. (as shown in Figure 5)

2 测试时加固材料受力状态 2 Stress state of reinforced material during test

本方法有别于采用发明专利“剪切强度测试仪及剪切测试方法”(专利号:ZL2010 10107968.6)测试浅层嵌固高强板条或表面粘贴高强板条的粘结强度时,加固材料在检测过程中受压力作用的情况,本方法测试时加固材料受拉力作用,与实际工程中受力状态相同,所测的结果更能代表工程实际情况。 This method is different from using the invention patent "Shear Strength Tester and Shear Test Method" (Patent No.: ZL2010 10107968.6) to test the bonding strength of shallow embedded high-strength slats or surface-attached high-strength slats. In the case of pressure during the testing process, the reinforced material is subjected to tensile force during testing by this method, which is the same as the stress state in the actual project, and the measured results can better represent the actual situation of the project.

3 检测数据对比 3 Comparison of detection data

本方法测得的抗剪粘结强度比正拉粘结强度(按《混凝土结构设计规范》GB50010 -2010的规定,C20时正拉强度取1.54MPa,C40时取2.39MPa)的数值略高,符合混凝土剪切强度略高于正拉强度的实际情况。 The shear bond strength measured by this method is slightly higher than the positive tensile bond strength (according to the "Code for Design of Concrete Structures" GB50010-2010, the positive tensile strength is 1.54MPa for C20, and 2.39MPa for C40). It is in line with the actual situation that the shear strength of concrete is slightly higher than the normal tensile strength.

4 测试精度 4 Test accuracy

本方法测试的同组试件破坏状态相近,测试结果的标准差均较小,表明试验数据稳定,试验方法可靠。 The failure state of the same group of specimens tested by this method is similar, and the standard deviation of the test results is small, indicating that the test data is stable and the test method is reliable.

5 贴近工程实际 5 close to the actual engineering

抗剪强度结果不仅与结构胶本身的性质有关,也与混凝土强度等级有关。本方法测试的结果反映了这一实际情况,并可根据实际工程混凝土强度的不同而选用不同强度等级的混凝土试块,以便做出与工程实际更为接近测试结果,更好地指导工程实践。 The shear strength results are not only related to the properties of the structural adhesive itself, but also related to the strength grade of the concrete. The test results of this method reflect this actual situation, and concrete test blocks of different strength grades can be selected according to the actual engineering concrete strength, so as to make test results closer to the actual engineering and better guide engineering practice.

附图说明 Description of drawings

图1是上挂架和下挂架结构示意图;图2是设置在混凝土试块外上挂架和下挂架结构示意图;图3是试验时上下挂架状态图;图4是受力分析图;图5是实际工程中加固材料在拉力下剥离破坏状态示意图。 Figure 1 is a schematic diagram of the structure of the upper hanger and the lower hanger; Figure 2 is a schematic diagram of the structure of the upper hanger and the lower hanger set outside the concrete test block; Figure 3 is a state diagram of the upper and lower hangers during the test; Figure 4 is a force analysis diagram ; Figure 5 is a schematic diagram of the peeling failure state of the reinforcement material under tension in actual engineering.

图中:1—螺钉;2—上连接条;3—阳角盖板;4—刀口托板;5—刀槽盖板; 6—阳角托板;7—定位条;8—定位盖板;9—混凝土试块;10—加固材料;11—加载设备压力方向;12—下连接条;13-螺栓孔;14-端部剥离;15-中部斜裂缝处剥离。 In the figure: 1—screw; 2—upper connecting strip; 3—male corner cover; 4—knife edge support plate; 5—knife groove cover; 6—male corner support plate; 7—positioning bar; 9—concrete test block; 10—reinforcing material; 11—pressure direction of loading equipment; 12—lower connecting strip; 13—bolt hole; 14—end stripping;

具体实施方式 Detailed ways

如图1-2所示,一种加固材料与混凝土间结构胶抗剪粘结强度测试装置,它包括设置在上混凝土试块9外缘的上挂架以及下混凝土试块9外缘的下挂架,上挂架底面中间位置设置V形凸起,下挂架顶面中间位置设置V形凹槽与上挂架的V形凸起配合, V形凸起在凹槽内绕接触线枢转一定角度。所述上挂架包括位于混凝土试块9上方的阳角盖板3和位于混凝土试块9下方的刀口托板4,阳角盖板3和刀口托板4通过至少一条上连接条2连接在一起,在刀口托板4底面设置V形凸起;所述下挂架包括位于上部的刀槽盖板5和位于下部的阳角托板6,刀槽盖板5和阳角托板6通过至少一条下连接条12连接在一起;在刀槽盖板5顶面设置V形凹槽,V形凸起及V形凹槽均与阳角盖板3平行布置。上连接条2为两条且均匀分布在阳角盖板3和刀口托板4的与V形凹槽平行的侧面上;下连接条12为两条且均匀分布在刀槽盖板5和阳角托板6的与V形凹槽平行的侧面上;在混凝土试块9上位于阳角盖板3和阳角托板6对侧分别设置定位盖板8。 As shown in Figure 1-2, a device for testing the shear bond strength of structural adhesive between reinforcement materials and concrete, it includes an upper hanger arranged on the outer edge of the upper concrete test block 9 and a lower hanger on the outer edge of the lower concrete test block 9 For the hanger, a V-shaped protrusion is set in the middle of the bottom surface of the upper hanger, and a V-shaped groove is set in the middle of the top surface of the lower hanger to cooperate with the V-shaped protrusion of the upper hanger. The V-shaped protrusion is pivoted around the contact wire in the groove. turn at an angle. The upper hanger includes an external angle cover plate 3 positioned above the concrete test block 9 and a knife-edge supporting plate 4 positioned below the concrete test block 9, and the external angle cover plate 3 and the knife-edge supporting plate 4 are connected to each other by at least one upper connection bar 2 Together, a V-shaped protrusion is set on the bottom surface of the knife-edge supporting plate 4; the lower hanger includes a knife groove cover plate 5 on the upper part and a male angle supporting plate 6 on the lower part, and the knife groove cover plate 5 and the male angle supporting plate 6 pass through At least one lower connection bar 12 is connected together; V-shaped grooves are set on the top surface of the sipe cover plate 5 , and the V-shaped protrusions and V-shaped grooves are arranged parallel to the male corner cover plate 3 . There are two upper connecting bars 2 and they are evenly distributed on the sides parallel to the V-shaped groove of the male corner cover plate 3 and the knife-edge supporting plate 4; there are two lower connecting bars 12 and they are evenly distributed on the knife groove cover plate 5 and the On the side of the angle supporting plate 6 parallel to the V-shaped groove; on the concrete test block 9, the opposite sides of the male angle cover plate 3 and the male angle supporting plate 6 are respectively provided with positioning cover plates 8 .

上挂架和下挂架四角设置四根定位条7,定位条7上设置四个定位孔,穿过定位孔的螺钉1分别旋入阳角盖板3,刀口托板4,刀槽盖板5、阳角托板6和定位盖板8上对应设置的螺纹孔中,将阳角盖板3,刀口托板4,刀槽盖板5、阳角托板6和定位盖板8整体地固定在一起。 Four positioning strips 7 are set at the four corners of the upper hanger and the lower hanger, and four positioning holes are set on the positioning strips 7, and the screws 1 passing through the positioning holes are respectively screwed into the male corner cover 3, the knife edge supporting plate 4, and the knife slot cover 5. In the threaded holes correspondingly set on the male corner support plate 6 and the positioning cover plate 8, the male corner cover plate 3, the knife edge support plate 4, the knife groove cover plate 5, the male corner support plate 6 and the positioning cover plate 8 are integrally fixed together.

上连接条2和下连接条12及定位条7上的螺栓孔均为长条形,可以调整阳角托板与刀口托板以及刀槽盖板和阳角托板的间距,以便适应存在制作误差的混凝土试块,测试过程中上连接条2、下连接条12和定位条7均不受力。 The bolt holes on the upper connecting bar 2, the lower connecting bar 12 and the positioning bar 7 are all elongated, and the distance between the male corner supporting plate and the knife-edge supporting plate, as well as the knife groove cover plate and the male corner supporting plate can be adjusted, so as to adapt to existing manufacturing conditions. For the concrete test block with errors, the upper connecting bar 2, the lower connecting bar 12 and the positioning bar 7 are not stressed during the test.

V形凸起的高度为10mm,角度为80°~90°;V形凹槽凹进的深度为3mm,角度为110°~120°。 The height of the V-shaped protrusion is 10mm, and the angle is 80°-90°; the depth of the V-shaped groove is 3mm, and the angle is 110°-120°.

如图1-3所示,本发明还提供一种加固材料与混凝土间结构胶抗剪粘结强度测试方法,其特征是:在两个混凝土试块上设置如权利要求1所述的上挂架和下挂架;将上挂架放置到下挂架上使V形凸起放置在V形凹槽中,并使用定位条7将上挂架和下挂架临时固定;采用结构胶将加固材料10粘贴到试块侧面,加固材料10在两试块的粘贴面积相等,待结构胶完全固化并在常温下养护一周后,拆除混凝土试块一侧的全部定位盖板8和全部定位条7,利用压力机或其他加荷设备产生的压力施加在另一侧的阳角盖板3上,使混凝土试块9有绕V形凸起接触线枢转的趋势,加固材料阻止其枢转,从而在加固材料10与混凝土基材之间产生剪切粘结力;当结构胶的剪切粘结力达到极限值并最终破坏时,即可通过极限压力和破坏的粘结面积计算出抗剪粘结强度。V形凸起位于混凝土试块9底面中部的下方,剪切粘结力与加荷设备的压力大小相等。 As shown in Figures 1-3, the present invention also provides a method for testing the shear bond strength of the structural adhesive between the reinforcement material and the concrete, which is characterized in that two concrete test blocks are provided with the upper hanger as described in claim 1 hanger and lower hanger; put the upper hanger on the lower hanger so that the V-shaped protrusion is placed in the V-shaped groove, and use the positioning bar 7 to temporarily fix the upper hanger and the lower hanger; use structural glue to reinforce The material 10 is pasted on the side of the test block, and the bonding area of the reinforcement material 10 on the two test blocks is equal. After the structural adhesive is completely cured and cured at room temperature for a week, remove all the positioning cover plates 8 and all the positioning strips 7 on one side of the concrete test block , the pressure generated by a press or other loading equipment is applied to the male corner cover plate 3 on the other side, so that the concrete test block 9 has a tendency to pivot around the V-shaped convex contact line, and the reinforcement material prevents it from pivoting, Thereby, a shear bonding force is generated between the reinforcement material 10 and the concrete substrate; when the shear bonding force of the structural adhesive reaches the limit value and finally fails, the shear resistance can be calculated by the ultimate pressure and the damaged bonding area Bond strength. The V-shaped protrusion is located below the middle part of the bottom surface of the concrete test block 9, and the shear bonding force is equal to the pressure of the loading device.

1 试验准备 1 Test preparation

1.1 在刀口托板和刀槽盖板上覆盖塑料薄膜,以免粘接材料污染,同时塑料薄膜不会影响测试精度。 1.1 Cover the knife edge support plate and the knife groove cover with plastic film to avoid contamination of the bonding material, and the plastic film will not affect the test accuracy.

1.2 测试时所用的混凝土试块应采用边长为150mm的试块,为更好地评价结构胶应用于实际工程时的粘结性能及其与加固材料的适配性,可采用强度和集料配比与待加固的构件混凝土相近的混凝土试块。 1.2 The concrete test block used in the test should be a test block with a side length of 150mm. In order to better evaluate the bonding performance of the structural adhesive when it is applied to the actual project and its adaptability to the reinforcement material, strength and aggregate can be used. Concrete test blocks with a proportion similar to that of the component concrete to be reinforced.

1.3 将两个混凝土试块置于本发明组件组装形成的空间中,将混凝土试块的浇筑顶面与底面置于正对定位条的位置,使之在试验过程中始终处于非直接受力状态。对齐两混凝土试块,拧紧螺栓,固定好混凝土试块。 1.3 Place two concrete test blocks in the space formed by the assembly of the components of the present invention, place the pouring top surface and bottom surface of the concrete test block at the position facing the positioning bar, so that it is always in a state of indirect stress during the test process . Align the two concrete test blocks, tighten the bolts, and fix the concrete test blocks.

1.4 按产品说明书规定的工艺要求配制好结构胶,按规定的粘结工艺将加固材料粘贴在两混凝土试块侧面,加固材料在两试块的粘贴面积相等,常温下养护7天以上。 1.4 Prepare the structural adhesive according to the technical requirements stipulated in the product manual, and paste the reinforcement material on the sides of the two concrete test blocks according to the specified bonding process. The reinforcement material is glued to the same area of the two test blocks, and cured at room temperature for more than 7 days.

2 试验步骤 2 Test steps

2.1 将组装件置于试验机或其它加载设备的承压板之间,使加载压力作用线通过连接盖板的中点。完全就位后拆除定位条及定位盖板。 2.1 Place the assembly between the pressure plates of the testing machine or other loading equipment, so that the line of action of the loading pressure passes through the midpoint of the connecting cover. After fully seated, remove the positioning bar and the positioning cover.

2.2 开动试验室,以0.2~0.5kN/s的速度加载,此时两混凝土试块有绕刀口托板凸起接触线枢转的趋势,加固材料阻止其转动,加固材料与混凝土基材间由此产生粘结剪切力。 2.2 Start the test room and load it at a speed of 0.2-0.5kN/s. At this time, the two concrete test blocks have a tendency to pivot around the raised contact line of the knife-edge supporting plate, and the reinforcement material prevents it from rotating. This creates bond shear forces.

2.3 继续加载直至加固材料与混凝土基材产生粘结剪切破坏,由于粘结剪切破坏的极限剪应变小,故试验过程中混凝土试块绕刀口托板V形凸起接触线枢转极小,加固材料始终处于轴线拉伸状态,结构胶始终处于剪切状态,两者受力方向均与加载设备压力方向平行。记录破坏时的极限压力值N,量测剪切破坏面的实际长度l和宽度b,则结构胶粘结加固材料与基材的抗剪粘结强度2.3 Continue to load until the reinforcement material and the concrete substrate produce bond shear failure. Since the ultimate shear strain of bond shear failure is small, the concrete test block pivots very little around the V-shaped convex contact line of the knife-edge support plate during the test. , the reinforcement material is always in the state of axial tension, and the structural adhesive is always in the shear state, and the direction of both forces is parallel to the direction of the pressure of the loading equipment. Record the ultimate pressure value N at the time of failure, measure the actual length l and width b of the shear failure surface, then the shear bond strength between the structural adhesive bonding reinforcement material and the base material .

2.4 每组做若干试样,分别测试其抗剪粘结强度,然后根据平均值、标准差等参数评价加固材料与混凝土间结构胶抗剪粘结强度。 2.4 Make several samples for each group, test their shear bond strength respectively, and then evaluate the shear bond strength of the structural adhesive between the reinforcement material and concrete according to the average value, standard deviation and other parameters.

Claims (8)

1. structure glue shearing resistance cohesive strength proving installation between a reinforcement material and concrete, it is characterized in that it comprises is arranged on the upper hanger of concrete test block outer rim and the lower hanger of lower concrete test block outer rim, centre position, upper hanger bottom surface arranges V-arrangement projection, the V-arrangement projection that lower hanger end face centre position arranges v-depression and upper hanger coordinates, V-arrangement projection in groove around osculatory pivotable certain angle; Described upper hanger comprises the edge of a knife supporting plate that is positioned at the external corner cover plate of concrete test block top and is positioned at concrete test block below, and external corner cover plate and edge of a knife supporting plate link together by connection strap at least one, in edge of a knife supporting plate bottom surface, V-arrangement projection are set; Described lower hanger comprises superposed cutter groove cover plate and the external corner supporting plate that is positioned at bottom, and cutter groove cover plate and external corner supporting plate link together by least one time connection strap; At cutter groove cover plate end face, v-depression is set, V-arrangement projection and external corner cover plate are arranged in parallel; Upper connection strap be two and be evenly distributed on external corner cover plate and the side parallel with v-depression of edge of a knife supporting plate on; Lower connection strap be two and be evenly distributed on cutter groove cover plate and the side parallel with v-depression of external corner supporting plate on; On concrete test block, be positioned at external corner cover plate and external corner supporting plate offside arranges respectively positioning cover plate.
2. structure glue shearing resistance cohesive strength proving installation between reinforcement material according to claim 1 and concrete, it is characterized in that four jiaos of upper hanger and lower hangers arrange four positioning strips, four pilot holes are set on positioning strip, bolt through pilot hole screws in respectively external corner cover plate, edge of a knife supporting plate, on cutter groove cover plate and external corner supporting plate in the corresponding threaded hole arranging by external corner cover plate, edge of a knife supporting plate, cutter groove cover plate, external corner supporting plate and positioning cover plate are integrally fixed together.
3. structure glue shearing resistance cohesive strength proving installation between reinforcement material according to claim 2 and concrete, is characterized in that the bolt hole of connection strap and positioning strip is strip.
4. structure glue shearing resistance cohesive strength proving installation between reinforcement material according to claim 1 and concrete, the height that it is characterized in that V-arrangement projection is 10mm, angle is 80 °~90 °; The recessed degree of depth of v-depression is 3mm, and angle is 110 °~120 °.
5. structure glue shearing resistance bond strength testing method between a reinforcement material and concrete, it is characterized in that: between the reinforcement material arranging on two concrete test blocks and concrete, structure glue shearing resistance cohesive strength proving installation comprises and is arranged on the upper hanger of concrete test block outer rim and the lower hanger of lower concrete test block outer rim, centre position, upper hanger bottom surface arranges V-arrangement projection, the V-arrangement projection that lower hanger end face centre position arranges v-depression and upper hanger coordinates, V-arrangement projection in groove around osculatory pivotable certain angle; Described upper hanger comprises the edge of a knife supporting plate that is positioned at the external corner cover plate of concrete test block top and is positioned at concrete test block below, and external corner cover plate and edge of a knife supporting plate link together by connection strap at least one, in edge of a knife supporting plate bottom surface, V-arrangement projection are set; Described lower hanger comprises superposed cutter groove cover plate and the external corner supporting plate that is positioned at bottom, and cutter groove cover plate and external corner supporting plate link together by least one time connection strap; At cutter groove cover plate end face, v-depression is set, V-arrangement projection and external corner cover plate are arranged in parallel;
Upper hanger is placed on lower hanger V-arrangement projection is placed in v-depression, and use positioning cover plate, positioning strip that upper hanger and lower hanger is temporary fixed; Adopt structure glue that reinforcement material is pasted to test block side, reinforcement material equates at the bonding area of two test blocks, until structure glue, solidify also maintenance at normal temperatures completely after one week, remove whole positioning cover plates and whole positioning strip, the pressure that utilizes pressing machine to produce is applied on external corner cover plate and external corner supporting plate, make concrete test block have the trend around V-arrangement projection osculatory pivotable, reinforcement material stops its pivotable, thereby produces shear bond power between reinforcement material and concrete substrate; When shear bond power value of reaching capacity of structure glue is also finally destroyed, can calculate by the bond area of extreme pressure and destruction shearing resistance cohesive strength.
6. structure glue shearing resistance bond strength testing method between reinforcement material according to claim 5 and concrete, is characterized in that V-arrangement projection is positioned at the below at middle part, concrete test block bottom surface, the pressure equal and opposite in direction of shear bond power and loading facilities.
7. structure glue shearing resistance bond strength testing method between reinforcement material according to claim 5 and concrete, it is characterized in that connection strap be two and be evenly distributed on external corner cover plate and the side parallel with v-depression of edge of a knife supporting plate on; Lower connection strap be two and be evenly distributed on cutter groove cover plate and the side parallel with v-depression of external corner supporting plate on.
8. structure glue shearing resistance bond strength testing method between reinforcement material according to claim 5 and concrete, is characterized in that being positioned at external corner cover plate on concrete test block and external corner supporting plate offside arranges respectively positioning cover plate.
CN201410257427.XA 2012-11-28 2012-11-28 Structure glue shearing resistance cohesive strength proving installation between reinforcement material and concrete Expired - Fee Related CN103983570B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210493957.5A CN102944514B (en) 2012-11-28 2012-11-28 Device and method for testing shearing resistance adhesive strength of structural adhesive between reinforcement material and concrete

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201210493957.5A Division CN102944514B (en) 2012-11-28 2012-11-28 Device and method for testing shearing resistance adhesive strength of structural adhesive between reinforcement material and concrete

Publications (2)

Publication Number Publication Date
CN103983570A true CN103983570A (en) 2014-08-13
CN103983570B CN103983570B (en) 2016-03-02

Family

ID=47727476

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201410257427.XA Expired - Fee Related CN103983570B (en) 2012-11-28 2012-11-28 Structure glue shearing resistance cohesive strength proving installation between reinforcement material and concrete
CN201210493957.5A Expired - Fee Related CN102944514B (en) 2012-11-28 2012-11-28 Device and method for testing shearing resistance adhesive strength of structural adhesive between reinforcement material and concrete

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201210493957.5A Expired - Fee Related CN102944514B (en) 2012-11-28 2012-11-28 Device and method for testing shearing resistance adhesive strength of structural adhesive between reinforcement material and concrete

Country Status (1)

Country Link
CN (2) CN103983570B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105738280A (en) * 2016-05-16 2016-07-06 三友(天津)高分子技术有限公司 Low-temperature (-40 DEG C) automatic tester and test method for high-strength structure adhesive of automobile
CN108801904A (en) * 2018-04-23 2018-11-13 郑州经纬西部新型建材科技有限公司 A kind of selection method suitable for building wall ceramic tile adhesive
CN113959942A (en) * 2021-10-28 2022-01-21 中铁建工集团有限公司 Device and method for field testing of flexural bond strength between reinforcement material and concrete
CN119223870A (en) * 2024-11-20 2024-12-31 徐州市建设工程检测中心有限公司 A concrete bonding strength testing device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983570B (en) * 2012-11-28 2016-03-02 山东省建筑科学研究院 Structure glue shearing resistance cohesive strength proving installation between reinforcement material and concrete
CN108732014B (en) * 2018-05-18 2024-05-14 中铁九桥工程有限公司 Detection device and detection method for shear strength of pasting of tetrafluoro plate
CN111380898A (en) * 2018-12-28 2020-07-07 观致汽车有限公司 Testing method and testing device for adhesive joint thermal expansion deformation failure
CN110144908B (en) * 2019-05-09 2024-03-22 中铁二院工程集团有限责任公司 Construction method of deep grouting reinforcement landslide structure
CN112748017A (en) * 2020-12-28 2021-05-04 招商局重庆交通科研设计院有限公司 Method for testing compressive strength of composite structure concrete interface

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1553163A (en) * 2003-05-31 2004-12-08 淄博泰宝防伪技术产品有限公司 Method and tester for testing pressure-sensitive sealing material sealing performance
CN1818611A (en) * 2006-03-21 2006-08-16 武汉理工大学 Method for measuring adhering material shearing performance and its experimental device thereof
CN101509868A (en) * 2009-02-18 2009-08-19 西北农林科技大学 A test method for the shear strength of the interface between the sealant and the substrate to be bonded
CN102944514B (en) * 2012-11-28 2014-07-16 山东省建筑科学研究院 Device and method for testing shearing resistance adhesive strength of structural adhesive between reinforcement material and concrete

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1193537A1 (en) * 1984-06-28 1985-11-23 Московский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Институт Стали И Сплавов Process of manufacturing specimen for determining adhesive strength of cladding layer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1553163A (en) * 2003-05-31 2004-12-08 淄博泰宝防伪技术产品有限公司 Method and tester for testing pressure-sensitive sealing material sealing performance
CN1818611A (en) * 2006-03-21 2006-08-16 武汉理工大学 Method for measuring adhering material shearing performance and its experimental device thereof
CN101509868A (en) * 2009-02-18 2009-08-19 西北农林科技大学 A test method for the shear strength of the interface between the sealant and the substrate to be bonded
CN102944514B (en) * 2012-11-28 2014-07-16 山东省建筑科学研究院 Device and method for testing shearing resistance adhesive strength of structural adhesive between reinforcement material and concrete

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
梅力彪 等: "碳纤维板与混凝土抗剪粘接性能试验研究", 《广州大学学报(自然科学版)》, vol. 3, no. 03, 31 July 2004 (2004-07-31) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105738280A (en) * 2016-05-16 2016-07-06 三友(天津)高分子技术有限公司 Low-temperature (-40 DEG C) automatic tester and test method for high-strength structure adhesive of automobile
CN105738280B (en) * 2016-05-16 2018-08-28 三友(天津)高分子技术有限公司 - 40 DEG C of low temperature auto testing instruments and test method for automotive high intensity structure glue
CN108801904A (en) * 2018-04-23 2018-11-13 郑州经纬西部新型建材科技有限公司 A kind of selection method suitable for building wall ceramic tile adhesive
CN113959942A (en) * 2021-10-28 2022-01-21 中铁建工集团有限公司 Device and method for field testing of flexural bond strength between reinforcement material and concrete
CN113959942B (en) * 2021-10-28 2023-08-15 中铁建工集团有限公司 Device and method for testing bending bonding strength between reinforcing material and concrete on site
CN119223870A (en) * 2024-11-20 2024-12-31 徐州市建设工程检测中心有限公司 A concrete bonding strength testing device
CN119223870B (en) * 2024-11-20 2025-05-23 徐州市建设工程检测中心有限公司 Concrete bonding strength detection device

Also Published As

Publication number Publication date
CN102944514A (en) 2013-02-27
CN102944514B (en) 2014-07-16
CN103983570B (en) 2016-03-02

Similar Documents

Publication Publication Date Title
CN103983570B (en) Structure glue shearing resistance cohesive strength proving installation between reinforcement material and concrete
CN103674723B (en) A kind of test method measuring soil body uniaxial tension test
Yao et al. Experimental study on FRP-to-concrete bonded joints
CN103344560B (en) Method for testing interface bond behavior of CFRP (carbon fiber reinforced polymer) cloth-concrete based on beam specimen
CN101806714B (en) Beam tester of bonding strength of fibre reinforced composite sheet and concrete
CN106644761B (en) A test method for determining the shear constitutive relation of rock-concrete interface
CN102207449A (en) Test method for bonding stress between fiber reinforced plastic bar and concrete
CN1865921A (en) Tensile bonding strength test method
CN110044706A (en) The test device and method of the rift grain tensile characteristics of ancient building wood material
CN110715866A (en) Asphalt concrete structure geotextile interlayer shear modulus testing device and testing method
CN202928939U (en) Test device for shear bond strength of structural adhesive between reinforcement material and concrete
CN102980803A (en) Stretching test fixture and stretching test method for pitch ultra-thin overlaying layer test piece
CN203396690U (en) Carbon fiber cloth-concrete interface adhesive property test device based on beam type test piece
Manalo et al. Testing and characterization of thick hybrid fibre composites laminates
Wang et al. Glulam beams adhesively bonded by birch plywood plates in moment-resisting beam-to-beam connections
Vaysburd et al. An evaluation of equipment and procedures for tensile bond testing of concrete repairs
Karbhari et al. Investigation of durability and surface preparation associated defect criticality of composites bonded to concrete
CN113155732B (en) High-strength steel strand mesh reinforced ECC and concrete interface performance test method
Chen et al. Flexural behavior of adhesively bonded cross-laminated timber-concrete composite (TCC) panel with glass-fiber textile mesh as reinforcement in concrete: Experimental studying and numerical simulation
CN110274872A (en) Directly measure the method for adhesive property on PEC steel reinforced concrete adhesive surface
CN204679350U (en) A kind of experimental provision measuring coating Critical fracture toughness
CN115356217A (en) A method for evaluating the performance of glued wood
CN110530706B (en) Loading device and test method for double-material interface under normal stress constraint
CN206930570U (en) A shear test device
CN218584463U (en) T-shock peeling length test sample preparation device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160302

Termination date: 20181128

CF01 Termination of patent right due to non-payment of annual fee