騰達(dá)試驗儀器廠：

　　防水卷材抗沖擊試驗儀適用于瀝青和高分子屋面防水卷材沖擊穿刺試驗。是依據(jù)**標(biāo)準(zhǔn)GB/T 328.2007《建筑防水卷材試驗方法》第24部分：瀝青和高分子防水卷材抗沖擊性能而設(shè)計的。

　　Waterproof membrane impact tester is a testing instrument,suitable for impact puncture test of asphalt and polymer roofing waterproof membrane.It is designed according to**standard GB/T 328.2007"Test methods for building waterproofing membranes"Part 24:Impact resistance of asphalt and polymer waterproofing membranes.

　　防水卷材抗沖擊試驗儀技術(shù)指標(biāo)：

　　★落錘垂直下落高度：(600±5)㎜

　　★落錘組件質(zhì)量：(1000±10)g

　　★穿刺工具直徑(及配重環(huán))：10㎜(厚7.5㎜配重環(huán))、20㎜(厚6㎜配重環(huán))、30㎜(厚4㎜配重環(huán))、40㎜(無)

　　★壓環(huán)尺寸及質(zhì)量：內(nèi)圓直徑200㎜、(5000±50)g

　　★不銹鋼板尺寸：300㎜*300㎜*10㎜

　　★聚苯乙烯板尺寸：300㎜*300㎜*50㎜

　　Technical index of waterproof coil impact tester:

　　★Vertical drop height of drop hammer:(600±5)㎜

　　★Drop weight component:(1000±10)g

　　★Piercing tool diameter(ａnd counterweight ring):10㎜(thickness 7.5㎜counterweight ring),20㎜(thickness 6㎜counterweight ring),30㎜(thickness 4㎜counterweight ring),40㎜(none)

　　★Pressure ring size and quality:Inner circle diameter 200㎜,(5000±50)g

　　★Stainless steel plate size:300㎜*300㎜*10㎜

　　★Polystyrene board size:300㎜*300㎜*50㎜

　　防水卷材抗沖擊試驗儀試驗步驟：

　　★從卷材寬度方向距邊緣100mm外裁取至少約300mm的10個試件，試件在規(guī)定的條件下至少放置24h。

　　★試驗在（23±2）℃進(jìn)行，必要時采用（-10±2）℃。對后面的條件，試件冷凍至（-10±2）℃。當(dāng)試件從冷凍箱取出，在室溫下應(yīng)在10s內(nèi)試驗。

　　★每次試驗采用新的試件和新的聚苯乙烯板。4、試件平放在絕熱材料上，上表面朝上，并用壓環(huán)壓住，聚苯乙烯板放在混凝土基礎(chǔ)的不銹鋼板上。

　　★落錘當(dāng)釋放時，能從距試件上表面垂直高度（600±5）mm的位置自由下落。

　　★穿刺工具應(yīng)沖擊壓環(huán)下試件的**。

　　★試驗驗開始用10mm直徑的穿刺工具進(jìn)行，當(dāng)試件被穿刺后，用更大直徑的，如此一直到40mm直徑的穿刺工具。

　　★檢查試件是否被擊穿，用肥皂溶液涂沖擊區(qū)域的表面，隔5min-10min試驗。對沖擊區(qū)域用真空或加壓的方法產(chǎn)生15KPa的壓差，上表面在低壓力的一面。若60s后未觀測到空氣氣泡，認(rèn)為試件無滲漏和穿孔。

　　★抗沖擊用穿刺工具的直徑表示，防水卷材5個試件中至少有4個試件無滲漏。

　　Test steps of waterproof coil impact tester:

　　★Take at least about 300mm of 10 test pieces from the width of the coil 100mm away from the edge,ａnd place the test pieces for at least 24h under the specified conditions.

　　★The test is carried out at(23±2)℃,and(-10±2)℃is used if necessary.For the latter conditions,the specimens were frozen to(-10±2)°C.When the test piece is removed from the freezer,the test should be performed within 10s at room temperature.

　　★New test pieces and new polystyrene boards are used for each test.4.The test piece is laid flat on the heat-insulating material with the upper surface facing up and pressed with a pressure ring.The polystyrene plate is placed on the concrete-based stainless steel plate.

　　★When the drop hammer is released,it can fall freely from the position of vertical height(600±5)mm from the upper surface of the test piece.

　　★The puncture tool should impact the test piece under the pressure ring**.

　　★The test is started with a 10mm diameter puncture tool.When the test piece is punctured,use a larger diameter puncture tool so that it reaches 40mm diameter.

　　★Check whether the test piece is punctured.Coat the surface of the impact area with soap solution,ａnd test every 5-10 minutes.A vacuum or pressure method is used to generate a pressure difference of 15KPa for the impact area,ａnd the upper surface is on the low pressure side.If no air bubbles are observed after 60 seconds,the test piece is considered to have no leakage or perforation.

　　★The diameter of the impact-resistant puncture tool indicates that at least 4 of the 5 test pieces of the waterproof membrane have no leakage.