樹脂導(dǎo)光混凝土的制備方法與力學性能研究
發(fā)布時間：2019-03-14 07:26
【摘要】：混凝土材料是目前最主要的建筑材料之一。現(xiàn)今，城鎮(zhèn)化速度的加快使得城市人口不斷擴增，城市土地資源極度稀缺，導(dǎo)致建筑物密度加大，建筑密度越來越大，建筑物間距變小，采光條件變差，不能保證充足的光照時間。由于混凝土不具透光性，，普通混凝土無法滿足功能需求。因此研究導(dǎo)光混凝土是非常必要的，既可以改善光照條件，節(jié)約能源，又可以起到裝飾的作用。 本文采用自主設(shè)計的模具及裝置來制備樹脂導(dǎo)光混凝土，并且介紹了兩種制作導(dǎo)光樹脂單元的工藝，根據(jù)樹脂單元植入水泥砂漿基體中的先后順序，把制備導(dǎo)光樹脂板單元分為“先植法”與“后植法”。此論文中的實際制備樹脂導(dǎo)光混凝土的方法采用“先植法”施工工藝。 本論文對樹脂導(dǎo)光混凝土的力學性能和透光性能做了具體的測試和分析，并分析了特殊樹脂與水泥砂漿基體間的界面對樹脂導(dǎo)光混凝土的力學性能的影響機理，采取一些適當措施如在界面上涂抹界面改性劑增加水泥砂漿基體與樹脂間的粘結(jié)力。采用強度試驗、紫外可見近紅外分光光度計、XRD、ESEM研究了樹脂導(dǎo)光混凝土的力學性能、透光性能以及樹脂與水泥砂漿間界面的微觀形貌。對樹脂導(dǎo)光混凝土與光纖導(dǎo)光混凝土的透光性能，制備成本，工藝方法進行對比，得出以下結(jié)論： 1.樹脂應(yīng)選擇透光性能好、力學性能高的樹脂材料。制備透光率高、力學性能好的樹脂導(dǎo)光混凝土必須選擇適合的特殊樹脂，樹脂的選擇的直接關(guān)系到模具材料的選用以及制備性能好的樹脂導(dǎo)光混凝土的可能性。 2.選擇模具時應(yīng)選擇與樹脂粘結(jié)性小的模具且應(yīng)具備可以多次重復(fù)使用的要求。模具材料的選擇直接關(guān)系到透明樹脂板單元脫模時的難易程度。如果模具與硬化后的樹脂粘結(jié)性太強，不僅難以脫模還會損壞樹脂本身。 3.樹脂導(dǎo)光混凝土的抗壓強度與樹脂與水泥砂漿基體間的界面結(jié)合強度有關(guān)，當采用界面改性劑涂抹在其界面上時，構(gòu)件的抗壓強度有較大幅度增加，因此，選擇一種特殊合適的界面改性劑涂抹在樹脂與水泥砂漿基體界面是非常重要的。 4.樹脂導(dǎo)光混凝土與光纖導(dǎo)光混凝土相比，透光率大，制備成本低，且制備工藝較為簡單。
[Abstract]:Concrete is one of the most important building materials at present. Nowadays, the acceleration of urbanization makes the urban population expand and the urban land resources are extremely scarce, which leads to the increase of building density, the increasing building density, the narrowing of building spacing, and the deterioration of lighting conditions. There is no guarantee of sufficient lighting time. Because concrete is not transparent, ordinary concrete can not meet the functional requirements. Therefore, it is necessary to study the light-guide concrete, which can not only improve the lighting conditions, save energy, but also play the role of decoration. In this paper, self-designed molds and devices are used to prepare resin light-guide concrete, and two kinds of manufacturing technology of light-guide resin unit are introduced, according to the order in which resin unit is implanted into the matrix of cement mortar, The preparation of light-guide resin plate unit is divided into "pre-planting method" and "post-planting method". In this paper, the construction technology of "pre-planting method" is used in the preparation of resin-guided concrete. In this paper, the mechanical properties and transmittance of resin light guide concrete are tested and analyzed, and the influence mechanism of the interface between special resin and cement mortar matrix on the mechanical properties of resin light guide concrete is analyzed. Take some appropriate measures such as applying interfacial modifiers on the interface to increase the bonding force between the matrix and resin of the cement mortar. The mechanical properties, transmittance and micro-morphology of the interface between resin and cement mortar were studied by means of strength test, UV-visible near infrared spectrophotometer (UV-NIR) and XRD,ESEM. By comparing the transmittance, preparation cost and process method of resin light guide concrete and fiber optic light guide concrete, the following conclusions are drawn: 1. The resin should choose the resin material with good light transmittance and high mechanical properties. The preparation of resin-based light-guide concrete with high transmittance and good mechanical properties must choose suitable special resin. The choice of resin directly relates to the selection of die materials and the possibility of preparing resin-based light-guide concrete with good performance. 2. Die selection should be small adhesive with resin mold and should have the requirement of repeated use. The selection of die material is directly related to the degree of difficulty when transparent resin plate element is demoulded. If the mold and hardened resin adhesion is too strong, not only difficult to demoulding, but also damage the resin itself. 3. The compressive strength of resin-guided concrete is related to the interfacial bonding strength between resin and cement mortar matrix. When the interfacial modifier is applied on the interface, the compressive strength of the component increases greatly, so the compressive strength of the component increases greatly. It is very important to choose a special suitable interface modifier on the interface between resin and cement mortar. 4. Compared with fiber optic light guide concrete, resin light guide concrete has the advantages of higher transmittance, lower preparation cost and simpler preparation process.
【學位授予單位】：南昌大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TU528
本文編號：2439767
[Abstract]:Concrete is one of the most important building materials at present. Nowadays, the acceleration of urbanization makes the urban population expand and the urban land resources are extremely scarce, which leads to the increase of building density, the increasing building density, the narrowing of building spacing, and the deterioration of lighting conditions. There is no guarantee of sufficient lighting time. Because concrete is not transparent, ordinary concrete can not meet the functional requirements. Therefore, it is necessary to study the light-guide concrete, which can not only improve the lighting conditions, save energy, but also play the role of decoration. In this paper, self-designed molds and devices are used to prepare resin light-guide concrete, and two kinds of manufacturing technology of light-guide resin unit are introduced, according to the order in which resin unit is implanted into the matrix of cement mortar, The preparation of light-guide resin plate unit is divided into "pre-planting method" and "post-planting method". In this paper, the construction technology of "pre-planting method" is used in the preparation of resin-guided concrete. In this paper, the mechanical properties and transmittance of resin light guide concrete are tested and analyzed, and the influence mechanism of the interface between special resin and cement mortar matrix on the mechanical properties of resin light guide concrete is analyzed. Take some appropriate measures such as applying interfacial modifiers on the interface to increase the bonding force between the matrix and resin of the cement mortar. The mechanical properties, transmittance and micro-morphology of the interface between resin and cement mortar were studied by means of strength test, UV-visible near infrared spectrophotometer (UV-NIR) and XRD,ESEM. By comparing the transmittance, preparation cost and process method of resin light guide concrete and fiber optic light guide concrete, the following conclusions are drawn: 1. The resin should choose the resin material with good light transmittance and high mechanical properties. The preparation of resin-based light-guide concrete with high transmittance and good mechanical properties must choose suitable special resin. The choice of resin directly relates to the selection of die materials and the possibility of preparing resin-based light-guide concrete with good performance. 2. Die selection should be small adhesive with resin mold and should have the requirement of repeated use. The selection of die material is directly related to the degree of difficulty when transparent resin plate element is demoulded. If the mold and hardened resin adhesion is too strong, not only difficult to demoulding, but also damage the resin itself. 3. The compressive strength of resin-guided concrete is related to the interfacial bonding strength between resin and cement mortar matrix. When the interfacial modifier is applied on the interface, the compressive strength of the component increases greatly, so the compressive strength of the component increases greatly. It is very important to choose a special suitable interface modifier on the interface between resin and cement mortar. 4. Compared with fiber optic light guide concrete, resin light guide concrete has the advantages of higher transmittance, lower preparation cost and simpler preparation process.
【學位授予單位】：南昌大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TU528
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