After continuous development and improvement, the crack resistance of steel mesh has been greatly improved. If the crack resistance of the wire mesh decreases, it is necessary to find out the specific reasons in time and whether there are rescue treatment points. The following is the analysis of the crack resistance of the wire mesh surface.

　　鋼焊接網(wǎng)在我國的使用還處于起步階段，我國鋼的使用總量不到十分之一的份額。20世紀(jì)90年代初，鋼焊接網(wǎng)被科委、建設(shè)部列為工程，并制定了規(guī)范和規(guī)程。

　　The use of steel welding net in our country is still in its infancy, and the total amount of steel used in our country is less than one tenth. In the early 1990s, the steel welding net was listed as a key project by the State Science and Technology Commission and the Ministry of Construction, and the regulations and regulations were formulated.

　　隨著我國基礎(chǔ)設(shè)施建設(shè)的發(fā)展，對基礎(chǔ)設(shè)施建設(shè)的貢獻(xiàn)不斷增加;實(shí)施西部大開發(fā)戰(zhàn)略。經(jīng)濟(jì)建設(shè)進(jìn)入新階段，電力、交通、水利、住宅及市政等基礎(chǔ)設(shè)施建設(shè)對鋼焊接網(wǎng)的需求將成倍增長。

　　With the development of infrastructure construction in our country, the contribution to infrastructure construction is increasing constantly, and the strategy of western development is implemented. As economic construction enters a new stage, the demand for steel welding network will be doubled in infrastructure construction such as electric power, transportation, water conservancy, housing and municipal administration.

　　根據(jù)現(xiàn)場開挖情況，施工側(cè)布置的鋼網(wǎng)距表面層10 cm，大大超出規(guī)范要求，降低了鋼網(wǎng)的抗裂能力。由于溫度的日益升高、熱脹冷縮的影響以及混凝土的特性，表面層的開裂是顯著的。

　　According to the site excavation, the steel mesh arranged on the construction side is 10 cm apart from the surface, which greatly exceeds the requirements of the code and reduces the crack resistance of the steel mesh. Due to the increasing temperature, the influence of thermal expansion and contraction, and the characteristics of concrete, the cracking of the surface layer is significant.

　　鋪裝層鋼網(wǎng)過低，導(dǎo)致混凝土保護(hù)層較厚。據(jù)報(bào)道，鋪裝層為橋梁結(jié)構(gòu)板上方14cm厚的混凝土路面，為平面路面，為非承重結(jié)構(gòu)。根據(jù)規(guī)范，鋪裝層的鋼筋網(wǎng)應(yīng)敷設(shè)在面層下方4厘米處。以上這些因素都可能導(dǎo)致鋼網(wǎng)片產(chǎn)生裂紋，進(jìn)而產(chǎn)生脫落。我們只需要注意這些點(diǎn)，然后我們不需要擔(dān)心太多。

　　The steel net of pavement layer is too low, which results in thick concrete protective layer. It is reported that the pavement is a concrete pavement 14cm thick above the bridge structural plate, a plane pavement and a non-load-bearing structure. According to the specifications, the steel mesh of the pavement should be laid 4 centimeters below the surface. All of these factors may lead to cracks in the steel mesh, which may lead to shedding. We just need to pay attention to these points, and then we don't need to worry too much.