產地 | 河北定州 |
品牌 | 海韻牌 |
型號 | BT-6023 |
海韻牌BT-6023型水泥灌漿料Chaton brand BT-6023 type cement grout material執行標準:JC476-2001、GB8076-1997Execution standard: JC476-2001, GB8076-1997一、用途:Application: 由膨脹、減水組分配制而成,適用于-10℃至40℃氣溫下施工。用于后張法預應力管道壓力灌注水泥凈漿。 By expanding, decrease water group FenPeiZhi and become, suitable for -10℃ to 40℃ temperature under construction. Used for the prestressed pipe pressure grouting method of zhang cement net pulp. 二、執行標準:JC476-2001、GB8076-1997Second, executive standard: JC476-2001, GB8076-1997 三、用量與用法Three, dosage and usage
代號 1045 | EPS-P型水泥凈漿灌漿劑 | 用于預應力混凝土、后張法波紋管、壓力澆灌水泥凈漿。普通型灌漿劑用于15℃以上氣溫施工。 | C×8% | 粉體 | 4kg/包 | 48㎏/袋 |
代號 1046 | EPS-C型水泥凈漿灌漿劑 | 用于預應力混凝土、后張法波紋管、壓力澆灌水泥凈漿。防凍型灌漿劑用于-15℃~15℃氣溫施工。冬季施工,灌漿前不需用水先沖洗孔道。 | C×9% | 粉體 | 4.5kg/包 | 45㎏/袋 |
四、貯運及包裝:Four, shipping and packing:1、內襯塑料袋外套編織袋。2、貯運中注意防潮,防破損。1, with inner plastic bags coat packaging.2, notice moistureproof, prevent shipping damage. 五、壓漿:Five, the grouting: 壓漿的目的是使預應力筋與混凝土結成整體。要求在張拉工作完畢后應盡快壓漿,以防預應力筋在孔道內因潮濕生銹而降低強度。壓漿之前要將夾片、錨環之間的空隙用水泥漿封實,水泥漿達到強度后即可進行封錨。 Grouting is designed to make prestressed reinforcement and co
ncrete form the whole. Requirements in drawing work as soon as possible after the completion of the grouting, in case the tendons at porelike internal damp rust and lower strength. Grouting before will clip slice, anchor ring the space between the water slurry seal reality, mud to strength can be carried out after sealing anchor.(1)水灰比的確定:壓漿前首要工作是清孔,即用高壓水沖洗孔道,使之充分濕潤,以利壓漿。壓漿所用水泥全部采用42.5級普硅水泥(出廠期不宜超過20d)。規范規定水灰比范圍為0.36±0.02,而在實際施工中若按此水灰比進行拌制,則灰漿過于稀薄且泌水率也較大,超過規范規定的4%。這樣灰漿泌水后收縮產生間隙,孔道不能被填滿,使之與混凝土不能有效地連成整體,從而影響共同承載能力。為了保證施工質量,工地經過反復試配得到的灰漿稠度在14~18s,符合規范要求并且得到確認。(1) water-cement ratio of determining pressure grouting before the first work is to clean the hole, use high pressure water washing passageways, make full moisture, eli grouting. Grouting cement used all adopt 42.5 grade silicon cement (doppler factory period is unfavorable exceed 20d). Rules and regulations water-cement ratio scope for 0.36±0.02, but in actual co
nstruction if press this water-cement ratio for mixing, the mortar too thin and secrete water rate is larger also, more than 4% of rules and regulations. This mortar secrete after water co
ntraction produce clearance, porelike cannot be filled in, what make with co
ncrete cannot effectively by overall, thereby affecting the common carrying capacity. In order to ensure the quality of co
nstruction site after repeated test match get mortar in 14~18s consistence, specification and /con
firm/ied.(2)灰漿的拌制及壓漿順序:灰漿的拌制量受時間限制,一次拌制量不宜過多,要求隨拌隨用,一般間隔時間以不超過40min為宜。在壓注過程中要不斷攪動,防止因其沉淀、結塊而堵塞真空泵,影響壓漿質量。壓漿要緩慢、均勻連續進行,壓漿順序由低至高。25m梁每片梁斷面均有4個孔道分上、下2層,孔道成曲線布置,兩端高中間低。壓漿時為了更有效地排氣和泌水,先由下層孔道開始注漿而后再上層孔道。制取邊長為70.7mm的立方體試塊28d的抗壓強度均超過30MPa,符合設計要求。(2) the mortar mixing and grouting sequence: mortar mixing amount of time limitation, o
nce the mixing quantity with unfavorable and overmuch, requirements, general with stir over time interval with no more than 40min advisable. In injecting process to stir, prevent because its precipitation, agglomerate and jam vacuum pump, affects the grouting quality. Grouting be slow, uniform continued, grouting order from low to high. 25m bimorph beam each section are four porelike points on, under 2 layer, decorate, Ko
ngDaoCheng curve ends high among low. Grouting to more effectively exhaust and secrete water, first from the lower porelike began again. Upper porelike grouting and then Preparation of side ranks lowest with 70.7 mm cube test-compo
nents 28d compressive strength exceeded 30MPa, comply with the design requirements.(3)提高壓漿質量的措施:出漿口有灰漿逸出時,為使孔道內灰漿密實應關閉出漿口,并保持0.7MPa的一個穩壓期,時間不少于3min。出漿口的關閉要根據水泥漿的渾濁程度確定,初始出漿口往外逸的是清水,繼而是混雜的漿水**是灰漿。待出漿口逸出的全部是灰漿時再用木塞將出漿口堵住,加壓3min直至出現泌水。泌水應在24h內被灰漿全部吸收。壓漿設備性能的好環對壓漿質量有很大的影響。輸漿管長度不宜過長。長度超過30m時,壓力相應提高,則對設備的性能提出更高要求,加大了投入。灰漿稠度不能過稀也不能過稠,過稀則孔道填不飽滿,過稠則真空泵吸管容易被堵塞。灰漿的稠度宜控制在14~18s。氣溫對壓漿質量影響很大。壓漿時氣溫不宜過高,也不能低于5℃,當氣溫高于35℃時,壓漿應在夜間進行。張拉、壓漿結束后即可進行封錨作業。封錨時需將錨具及梁體預留鋼筋有機地結成整體,確保預應力梁的整體質量,同時加強養護工作。(3) improve grouting quality measures: pulp out mouth have mortar escaping, to make porelike close-grained should shut inside mortar mouth, and maintain pulp out of a voltage 0.7 MPa, not less than 3min time period. The closure of the pulp out mouth according to the slurry turbidity degree determine, initial pulp out to escape the mouth is water, then is mixed slurry water, and finally the mortar. Stay out pulp mouth escaping are all mortars reoccupy cork will pulp out mouth, until 3min blocking pressurized appear secrete water. Secrete water should be within 24h by mortar thoroughly absorbed. Grouting equipment performance of good rings on grouting quality has very big effect. Lose grouting pipe length shoulds not be too long. Length exceeds as, pressure rise accordingly, on equipment performance is put forward higher request, increase the investment. Mortar co
nsistence cannot pass thin also cannot too thick, thin is porelike fill not the full, too thick is vacuum pump straws easily be blocked. Mortar of viscosity should be co
ntrolled between 14~18s. The temperature of grouting quality influence. Grouting when the temperature is unfavorable and exorbitant, no less than 5℃, when temperatures above 35℃, grouting should be performed at night. Tension and pressure grouting after sealing anchor operation can be carried out. Sealing anchor to will the anchorage and beam body obligate form whole, reinforced organic ground to ensure the overall quality of the prestressed beams, and strengthen maintenance work.