TST无缝伸缩缝适用一中的各个时期，通常在零下-40℃时桥面不会变脆，在夏季高温达80℃时不会流动。不仅适用于温差变化不大南方地区，对于温差较大的我国西北，东北等地也可以使用。在全国范围内都可以正常使用。由于TST的高温粘附特性，在施工时可与现有路面牢固粘结变快，常温不粘，冷却后也不会被带走。
TST seamless expansion joints are suitable for all periods of a year. Generally, the bridge deck will not become brittle when the temperature is below - 40 C, and will not flow when the temperature reaches 80 C in summer. It can be used not only in the south where the temperature difference does not change much, but also in the northwest and northeast of China where the temperature difference is large. It can be used normally all over the country. Because of the high temperature adhesion characteristics of TST, it can bond with existing pavement firmly and quickly during construction. It is not sticky at room temperature and will not be taken away after cooling.
TST无缝伸缩缝粘接料使用寿命长，如果严格按照生产工艺安装的无缝粘接料，它的使用寿命是一般改性沥青路面的两倍左右。并且有很好的舒适性，能充分吸收各种大型车辆振动冲击，车辆驶过舒适平稳。
TST seamless expansion joint binder has a long service life. If the seamless binder is installed strictly according to the production process, its service life is about twice as long as that of general modified asphalt pavement. And it has good comfort, can fully absorb all kinds of large-scale vehicle vibration impact, vehicle ride comfortably and smoothly.
所谓“弹性接缝”就是一种粘弹性结合材料来做的接缝，使接缝产生一定的弹塑变形来适应结构的变形。其性能特点如下：
The so-called "elastic joint" is a kind of joint made of viscoelastic bonding material, which makes the joint produce certain elastic-plastic deformation to adapt to the deformation of the structure. Its performance characteristics are as follows:
1)TST是一种特制的高粘弹塑性材料，常温下呈弹塑态，高温熔溶后可热灌人碎石中，成型后如同沥青砼状，能承受车辆荷载，又有弹性，可代替小伸缩缝的功能。
1) TST is a special high viscoelastic plastic material. It is elastic-plastic at room temperature. After melting at high temperature, it can be Hot-Poured into gravel. It is shaped like asphalt concrete. It can bear vehicle loads and is elastic. It can replace the function of small expansion joints.
2)构造简单，TST碎石直接铺在桥梁接缝处，与前后的桥面铺装形成连续体，桥面平整无缝。这种弹性接缝能吸收各方面的变形和振动，行车平稳、舒适、无噪音、振动。
2) The structure is simple. The TST gravel is directly laid on the bridge joints, forming a continuum with the front and back deck pavement, and the deck is smooth and seamless. The elastic joint can absorb all kinds of deformation and vibration, driving smoothly, comfortably, without noise and vibration.
3)施工方便快捷，铺装冷却后，即可开放交通。当伸缩缝需要进行更换时，可半边施工。对交通繁忙路段不中断交通。
3) The construction is convenient and fast. After the pavement is cooled, the traffic can be opened. When expansion joints need to be replaced, half construction can be done. No interruption of traffic on busy sections.
4)接缝和桥面铺装联成一体，密封防水性好，且造价低、耐用。
4) Joints and deck pavement are integrated, with good sealing and waterproofing, low cost and durability.
GTF 等,近来国内外正在研究和逐步推广这一适用于小位移量的伸缩缝型式.其特点是采用具有热熔和弹塑性能的高分子材料组成混合料替代通常的伸缩缝结构,达到路桥铺装层平顺、连续过渡,同时又适应一定量三维变位能力.
In recent years, GTF and others are researching and gradually popularizing this type of expansion joint suitable for small displacement at home and abroad. Its characteristics are that the mixture of polymer materials with hot-melt and elastic-plastic properties is used to replace the common expansion joint structure, so as to achieve smooth and continuous transition of road and bridge pavement, and at the same time to adapt to a certain amount of three-dimensional displacement capacity.
这种高弹性特种沥青与石料的混合物可以吸收由于温度和交通负荷作用产生的桥面板位移,而保证表层不会开裂损坏.无缝伸缩粘接料能够同时兼顾高温和低温、渗透和粘性这些对立的性能要求,不仅适用于温度单一地区,而且适用于温差较大的地区.
This mixture of high elastic asphalt and stone can absorb the displacement of bridge deck caused by temperature and traffic load, and ensure that the surface layer will not crack and damage. Seamless expansion bonding material can take into account the opposing performance requirements of high temperature and low temperature, permeability and viscidity. It is not only suitable for single temperature area, but also suitable for areas with large temperature difference.
施工工艺
construction technology
1.切割槽口；根据桥梁的伸缩量,确定合理的槽口尺寸在确定了槽口的尺寸以后,在锯口的位置打上水线.然后用无齿锯沿线切割,保持槽口线平行.以保证桥头接缝的美观.
1. Cutting grooves; according to the expansion of the bridge, determine the reasonable groove size. After determining the groove size, water line is drawn at the position of the saw. Then the groove line is cut along the line with toothless saw to keep the groove line parallel, so as to ensure the beauty of the bridge head joint.
2.清洁 ,用钢丝刷清洁槽口 ,用空压机吹干净,然后用烤槽口确保 把粘和面的干燥（条件允许 用高压水枪冲洗干净,然后在用烤干）. 注意控制蚺烤的时间,以免将槽口烤软变形.在桥梁伸缩缝处嵌入耐高温海绵填充条,防止 TST 融化料流出.
2. Clean the groove with wire brush, blow it with air compressor, and then use the baking groove to ensure the drying of the sticky surface (conditions permit high-pressure water gun to wash clean, then bake dry). Pay attention to controlling the baking time, so as not to bake the groove soft deformation. Insert high-temperature sponge filling strip in the expansion joint of the bridge to prevent TST melting material from flowing out.
3 将 TST 料溶化后 ,均匀的涂槽口的底部厦两侧.注意不要留 有空自,防止‘碎石与槽口结合不牢固而产生脱落.造成桥头接缝的 破坏 ,并用 2-4mm 厚的钢板（钢板的宽度根据缝的宽度来定,一般 为 15 厘米左右）放置在槽口中央,然后在钢板上再涂上一层 TST 融 化料.
3. After dissolving the TST material, the bottom of the groove mouth will be evenly coated on both sides of the building. Be careful not to leave any space to prevent the `broken stone and groove joint from falling off due to weak combination. Cause bridge head joint damage, and use 2-4 mm thick steel plate (the width of the steel plate is determined according to the width of the seam, generally about 15 cm) to place in the center of the groove mouth, and then coat the steel plate with TST melting material.
主层施工：选择有棱角、嵌挤性好的坚硬石灰岩碎石（1.2 厘米左右）,要求压碎值不大于 30％,针片状含量不大于 15—20％ , 且具有良好的配.石子必须清洁、加热,加热的温度为 140—160℃, 将加热的碎石拌上 TST 料均匀地放置于槽中,立即灌人 190- 21O℃的TsT 溶夜.流动的 TST 交替立即填补了碎石之间的缝麒,且将橙散的碎石粘结在一起.形成主层的 TST 碎石.TST 料用量为 660 公斤
Main Layer Construction: Choose hard limestone gravel (about 1.2 centimeters) with angular and good embedding property, which requires crushing value not more than 30%, needle-like content not more than 15-20%, and good gradation. Stone must be clean and heated, the heating temperature is 140-160 C, the heated gravel should be mixed with TST material and evenly placed in the trough, and the TsT melting night at 190-21O C should be poured into the trough immediately. The TST alternation immediately filled the gap between the gravel and bonded the orange crushed stone together. The TST crushed stone formed the main layer. The amount of TST material used is 660 kg.
表层施工：将加热后的表层石料与热的 TST 溶胶充分拌合. 为防止温度降低拌台不均,可适当用加热.将表层碎石立即铺在主层上,并立即用铁墩子夯实,由于 TST 碎石在常温时具有良好的弹性.所以夯实一定要及时,防止由于温度下降而造成压实度不足形成早期破坏.表层施工时.与原路面的高差要根据季节的不同作适当 的调整,以防止行车时产生明显跳动的感觉
Surface construction: fully mix heated surface stone with hot TST sol. In order to prevent uneven mixing table from decreasing temperature, proper heating can be used. Surface crushed stone is immediately laid on the main layer and compacted with iron piers. Because TST crushed stone has good elasticity at room temperature, compaction must be timely to prevent early damage caused by insufficient compaction due to temperature drop. Man-hour. The height difference between the original road surface and the original road surface should be adjusted according to the season to prevent obvious jumping sensation while driving.