【正文】 g the function of crowding of material thickly under the hightemperature state, but improve the rammer hammer properly and shake the frequency of smashing , make surplus debulk coefficient reduce, the mark pressed for the first time is extremely small, and then guarantee the final roughness of the road surface . 3, the specification requirement rolled To the security mixing type mixture, its suitable rolling the temperature range is 130 degrees Centigrade 150 degrees Centigrade, it roll temperature and is not lower than 110 degrees Centigrade finally. The debulk craft of the pitch mixture of SBS goes on in line with the following principle: According to is it roll the Eight Character policy roll to follow keep , high frequency , low piece closely , not slow , the road roller must be followed closely in the back of the paver, only by rolling make better result under the hightemperature condition can it, the speed of debulk is controlled in 4 5km/h. It is balanced to roll the speed, close vibration when falling back, the direction should change gradually, mustn39?？障堵视嬎闼璧淖畲罄碚撁芏纫悦刻鞂崪y為準，測試按照 “瀝青路面混合料最大相對密度試驗（真空法）（ T0711－ 93） ”進行。拌和必須均勻，只有 SBS 瀝青改性劑完全分散在瀝青中，才能充分發(fā)揮其效能，對于密級配（ AC13I）混合料，應(yīng)做到拌合后的混合料均勻一致，無細料和粗料分離及花白、結(jié)成團塊的現(xiàn)象。 采用水泥、消石灰粉做填料時，其用量不宜超過礦料總量的 2%。 關(guān)于 SBS改性瀝青配合比設(shè)計及施工技術(shù)的探討 [摘要 ] 在良好的設(shè)計配合比和施工條件下， SBS瀝青能使瀝青路面的耐久性和高溫穩(wěn)定性明顯提高。 改性瀝青混合料填充料宜采用強基性巖石（石灰?guī)r、巖漿巖）等增水性石料經(jīng)磨細得到的礦粉，礦粉要求干燥、潔凈，不宜使 用混合料生產(chǎn)中干法除塵的回收粉。 拌合、運輸?shù)募夹g(shù)要求 為保證瀝青混合料的質(zhì)量更穩(wěn)定，瀝青用量更準確，宜采用間隙式拌和機拌和。 SBS瀝青混合料的質(zhì)量控制 對于瀝青面層混合料，現(xiàn)場的壓實 效果應(yīng)采用空隙率和壓實度雙向控制。t twist curved to walk, to roll starting point or terminal point can twist amp。碾壓速度均衡，倒退時關(guān)閉振動，方向要逐漸地改變，不許擰著彎行走，對每一道碾壓起點或終點可稍微扭彎碾壓，消除碾壓接頭輪跡。 D、改性瀝青混合料的水 穩(wěn)定性應(yīng)符合以下兩個指標要求，達不到要求時應(yīng)采取抗剝落措施： (1)、采用 “瀝青混合料馬歇爾穩(wěn)定度試驗 ”方法測定的 48h 浸水馬歇爾穩(wěn)定度試驗殘留穩(wěn)定度不應(yīng)小于 80%。 12細集料 細集料包括人工砂、天然砂。在 SBS 改性瀝青生產(chǎn)過程中進行了大 量的室內(nèi)試驗，生產(chǎn)后對其技術(shù)指標進行了現(xiàn)場實驗，實驗結(jié)果表明，外摻 %SBS的改性瀝青，軟化點、針入度等指標均滿足改性瀝青規(guī)范要求，可用 SBS 改性瀝青做瀝青混合料的配合比設(shè)計。 22粉料比 小于 含量的多少對瀝青混合料體積指標和路用性能影響很大，混合料級配中小于 的含量必須考慮粗集料本應(yīng)含有的粉塵部分。為提高路面的平整度，表面層宜采用攤鋪前后保持相同高差的雪橇式攤鋪厚度控制方式。 譯文： The SBS modified pitch match ratio design and discussion of construction technology [The summary ] under good design match ratio and execution conditions, SBS pitch can make the durability on the pitch road surface and hightemperature stability obviously improve . This text will test the situation according to the construction of No. two in the south , will tell the construction specification requirement for the modified pitch of SBS briefly . First, SBS modified pitch summary The modified pitch of SBS is on the basis of original host pitch (AH70 ), is it add % % to mix, % SBS modify pharmaceutical, modify pitch after , pare with original pitch, its hightemperature viscidity increases, soften and click rising. Under good design match ratio and execution conditions, the durability on the pitch road surface and hightemperature stability obviously improve. Test while going on in a large number of rooms while the modified pitch of SBS produces, carry on the onthespot experiment to its technical indicator after production, experimental result indicate outside mix % modified pitch of SBS , soften some , needle enter degree index meet modified pitch standardize the request, can make the match ratio design of the pitch mixture with the modified pitch of SBS . Second, the match ratio of the pitch mixture of SBS is designed In order to enable the mixture designed to reach the implementing effect, ne