產(chǎn)地 | 河北定州 |
品牌 | 海韻牌 |
型號(hào) | BT-6022 |
海韻牌BT-6022型特高強(qiáng)無收縮灌漿料Chaton brand BT-6022 type Special high-strength non-shrink grouting materialBT-6022型特高強(qiáng)無收縮灌漿料的性能BT-6022 type, high-strength non-shrink grouting material performance 摘要:依據(jù)大量的試驗(yàn)成果,闡明特高強(qiáng)無收縮灌漿料是一種具有早強(qiáng)、高強(qiáng)、高流態(tài)、微膨脹和耐久性好等多種優(yōu)點(diǎn)的新型復(fù)合材料。它是將流態(tài)混凝土、早強(qiáng)高強(qiáng)混凝土、膨脹混凝土和外加劑等多種混凝土技術(shù)綜合運(yùn)用。 ba
sed on large amounts of test results, clarify especially high-strength non-shrink grouting material is one kind has the early strength, high strength, high flow pattern, micro expansion and better durability and so on many kinds of the advantages of the new type composite materials. It is will flow pattern concrete, early strength high strength concrete, expansion of co
ncrete and admixture and so on many kinds of co
ncrete technology comprehensively. 為了提高冶金、石化和電力等系統(tǒng)的軋鋼、連鑄、壓縮機(jī)、大功率泵和發(fā)電機(jī)等大型與特大型設(shè)備的安裝精度,加快安裝速度和延長設(shè)備使用壽命,需要采用流動(dòng)度大、強(qiáng)度高和具膨脹特性的灌漿材料。這類材料不僅可用于大中型設(shè)備的地腳螺栓的錨固、墊板座漿的二次灌漿,也可用于梁柱接頭,工程搶修等具有早強(qiáng)、高強(qiáng)、無收縮和高流態(tài)要求的建筑施工?! n order to improve the me
tallurgy, petrochemical and power system of steel rolling, casting, compressor, high-power pump and generator and other large and superlarge equipment installation accuracy, shorten installation speed and lengthen the service life of apparatus, need to adopt the fluidity, high strength and with expansive properties of grouting material. This kind of material can be used not o
nly in large and medium-sized equipment of the anchor bolt anchor, pad seat pulp second grouting, also can used for beam-column joints, engineering repair etc with early strength, high strength, without shrinkage and high flow function requirement of construction. 一、新灌漿料性能研究A new grouting material performance, study1 、灌漿料是一種具有早強(qiáng)、高強(qiáng)、高流態(tài)、微膨脹和耐久性好等多種優(yōu)點(diǎn)的新型復(fù)合材料。為此,它的研究與開發(fā)包含流態(tài)混凝土,高強(qiáng)早強(qiáng)混凝土,膨脹混凝土和外加劑應(yīng)用等多種技術(shù),以無機(jī)膠凝材料和高強(qiáng)骨料為主,通過摻入不同種類的外加劑使得產(chǎn)品具有各種要求的性能,其主要性能如表 1 所示。1, grouting material is one kind has the early strength, high strength, high flow pattern, micro expansion and better durability and so on many kinds of the advantages of the new type composite materials. Therefore, it is the research and development of high strength co
ncrete co
ntaining flow pattern, early strength of co
ncrete expansive co
ncrete and admixture, application and so on many kinds of technology, with inorganic gel materials and high-strength aggregate is given priority to, through adding different kinds of admixture products made with various requirements of the performance and its main properties such as shown in table 1.表 1產(chǎn)品主要性能Table 1 main products performance
名稱 | 豎向膨脹率 /% | 抗壓強(qiáng)度 /MPa | 流動(dòng)度 /mm | 鋼筋粘結(jié)強(qiáng)度 /MPa |
1d | 3d | 28d | 圓鋼 | 螺紋鋼 |
6022 | 0.01~0.05 | 30~45 | 35~55 | 50~75 | 260 | 6.0 | 13.0 |
二、試驗(yàn)材料和方法Second, the test materials and methods1、試驗(yàn)方法執(zhí)行下列標(biāo)準(zhǔn)或規(guī)范1, test methods perform following standard or specification(1) 跳桌流動(dòng)度 GB8077 — 87 (2) 豎向膨脹率 GBll9 — 88(1) jump table GB8077-87 fluidity. (2) the vertical expansion rate GBll9-88(2) 抗壓強(qiáng)度 GBll9 — 88 (4) 凝結(jié)時(shí)間 GBll7 — 85(2) the compressive strength GBll9-88 (4) setting time GBll7-85(3) 鋼筋粘結(jié)力 YBJ222 — 90 (6) 疲勞試驗(yàn) GBJ82 — 85(3) reinforced rapping YBJ222-90 (6) fatigue test GBJ82-85(4) 彈性模量 JBJ70 — 90 (8) 砂漿抗?jié)B JC474 — 92(4) elastic modulus JBJ70-90 (8) mortar anti-permeability JC474-92(5) 凍融 CBJ82 — 85 (10) 鋼筋銹蝕 YBJ222 — 90(5) freeze-thaw CBJ82-85 (10) YBJ222-90 rebar corrosion(6) 熱膨脹 GB7320 — 87(6) thermal expansion GB7320-872、試驗(yàn)用材料2, the experiment with materials(1) BT-6022型灌漿料 (2) 自來水(1) BT - 6022 type grouting materials (2) tap water 三、性能Three, performance 用于設(shè)備灌漿的灌漿料材料是一種具有高強(qiáng)、早強(qiáng)、高流動(dòng)態(tài)和微膨脹等特性的混合材料。它主要是由特殊膠凝材料、膨脹材料、高強(qiáng)骨料和多種外加劑組成的?,F(xiàn)對(duì)試驗(yàn)成果作一介紹?! he grouting material used in the device grouting material is one kind has the high strength, early strength, high flow dynamic and micro expansion character such as mixing materials. It mainly co
nsists of special cementitious material, expansive materials, high aggregate and composed of multiple admixtures. Now on the test results in this paper.1 、流動(dòng)度1, the fluidity 流動(dòng)度指標(biāo)是灌漿施工有無成效的重要條件。根據(jù)國外設(shè)計(jì),一般要求灌漿料的跳桌流動(dòng)度大于 240mm,以保證灌漿料依靠自重或稍加插搗就能流進(jìn)所要填充的全部空隙。按不同水料比測(cè)定的 CGM 灌漿料的流動(dòng)度和強(qiáng)度 ( 見圖 1 與表 2) ,圖 1 表 2 顯示 灌漿料隨著用水量的增加流動(dòng)度增大,而抗壓強(qiáng)度則降低。 The fluidity indexes is without effective grouting co
nstruction is an im
portant condition. According to the foreign design, general requirement grouting material jump table 240mm fluidity than to ensure grouting materials depend on passengers or slightly beaten can flow into inserted to fill all the gap. According to different water than determination CGM grouting material feeding fluidity and intensity (see chart 1 and table 2), figure 1 chart 2 grouting material with the increase of water flow degree increased, and the compressive strength is lower.表 2用水量對(duì)流動(dòng)和強(qiáng)度的影響Table 2 water to flow and intensity of influence
W ——% BT-6022 | 流動(dòng)度 /mm | 抗壓強(qiáng)度 /MPa |
1d | 3d | 28d |
11 | 160 | 58 | 60 | 75 |
12 | 220 | 50 | 56 | 72 |
13 | 260 | 48 | 52 | 69 |
14 | 280 | 44 | 50 | 65 |
15 | 310 | 38 | 45 | 58 |
根據(jù)試驗(yàn),在不同溫度條件下該材料流動(dòng)性延續(xù)時(shí)間對(duì)流動(dòng)度影響見表 3 。施工中應(yīng)注意對(duì)攪拌好的灌漿料不宜久置?! ccording to the experiments, under different temperature co
nditions the material for the duration liquidity fluidity influence to table 3. Co
nstruction attention should be paid to stir good grouting material shoulds not be long offsets.表 3時(shí)間延續(xù)對(duì)流動(dòng)度的影響Table 3 time co
ntinuance of the fluidity of influence
W ——% BT-6022 | 溫度 / ℃ | 流動(dòng)度 /mm |
0min | 30min | 60min | 90min | 120min |
13 | 10 | 260 | 260 | 250 | 240 | 210 |
13 | 20 | 260 | 265 | 240 | 230 | 190 |
13 | 35 | 260 | 250 | 200 | 175 | 140 |
2 、凝結(jié)時(shí)間2, setting time 灌漿料的凝結(jié)時(shí)間直接影響到施工連續(xù)性和質(zhì)量。BT-6022中膠凝材料的水化速度隨環(huán)境溫度不同而改變,凝結(jié)時(shí)間也隨之變化。所測(cè)定的不同溫度和流動(dòng)度 CGM 的凝結(jié)時(shí)間 ( 表 4) ,可供不同條件下施工參考之用?! routing material setting time directly affect the co
nstruction co
ntinuity and quality. In BT-6022 cementitious materials of hydration speed with different enviro
nmental temperature changes, setting time changed also. Determine different temperatures and fluidity CGM of setting time (table 4) for different co
nditions co
nstruction reference.表 4 BT-6022的凝結(jié)時(shí)間Table 4 BT-6022 of co
ndensate time
流動(dòng)度 /mm | 溫度 / ℃ | 凝結(jié)時(shí)間 /h |
初凝 | 終凝 |
210 | 20 | 3.8 | 6.7 |
270 | 20 | 4.1 | 7.0 |
270 | 10 | 5.8 | 8.3 |
210 | 10 | 5.6 | 8.0 |
270 | 35 | 2.8 | 4.9 |
3 、限制膨脹性3, restricted expansion 在設(shè)備安裝中,用灌漿料澆筑的二次灌漿層上表面高度不能低于初始表面高度,而且要向上有一定膨脹變化,這種變形稱為豎向限制膨脹。地腳螺栓的錨固有一定的膨脹應(yīng)力,使螺栓錨于應(yīng)力場(chǎng)中,可大大地提高抗拉拔的能力。見圖 2 、表 5 表明BT-6022灌漿料在常溫下都有一定的豎向限制膨脹性,限制膨脹率在 0.010%~0.040%范圍內(nèi),并在灌漿后十天左右開始穩(wěn)定?! n equipment installation, use grouting material casting of seco
ndary layer surface height grouting cannot under initial surface height, but also to have certain upward expansion change, this kind of vertical deformation called restricted expansion. The anchor bolt anchor has certain expansive stress, bolt anchor in stress field, it can greatly increase tensile pull ability. See chart 2 and table 5 grouting material that BT-6022 at room temperature are certain vertical limit the dilatability, limit inflation in 0.010%~0.040% range, and in approximately ten days after grouting began to stabilize.表 5 BT-6022在常溫膨脹率%Table 5 BT-6022 in room temperature inflation %
1d | 2d | 3d | 7d | 10d | 14d | 28d |
0.008 | 0.010 | 0.012 | 0.026 | 0.030 | 0.032 | 0.036 |
4 、抗壓和抗折強(qiáng)度4, compressive strength and flexural strength 按國內(nèi)規(guī)范要求,一般設(shè)備安裝的二次灌漿采用的細(xì)石混凝土強(qiáng)度應(yīng)比設(shè)備基礎(chǔ)混凝土高一級(jí)。當(dāng)用無墊板方式安裝設(shè)備時(shí),按國外設(shè)計(jì)要求,灌漿料的一天抗壓強(qiáng)度要達(dá)到 30MPa , 28d 抗壓強(qiáng)度達(dá)到 60MPa ,甚至更高 ( 如鋼連鑄 ) 。為了滿足上述設(shè)計(jì)要求,在對(duì)BT-6022 原材料配比進(jìn)行大量試驗(yàn)研究后,測(cè)定的抗壓、抗折強(qiáng)度的范圍值見表 6 ?! ccording to the domestic requirements specification, general equipment installation of seco
ndary grouting used fine stone co
ncrete strength than equipment should be co
ncrete foundation high level. When with no clear way installation equipment, the foreign design requirements, grouting material day compressive strength to achieve 30MPa, 28d compressive strength to 60MPa, or even higher (such as steel casting). In order to meet the design requirement, in raw materials for BT-6022 a lot of experimental research ratio, determination of the compressive strength, flexural strength of the range value table 6.表 6 BT-6022的抗壓抗折強(qiáng)度 MPaTable 6 BT-6022 compressive flexural strength MPa
抗壓強(qiáng)度 | 抗折強(qiáng)度 |
1d | 3d | 28d | 1d | 7d | 28d |
30~40 | 40~55 | 60~75 | 6~8 | 10~14 | 12~14 |
從表 6 數(shù)據(jù)可見,BT-6022的早期和后期抗壓強(qiáng)度都達(dá)到國內(nèi)外設(shè)計(jì)要求,抗折強(qiáng)度與普通混凝土相比更有優(yōu)越性。因此,可以在有早強(qiáng)、高強(qiáng)要求的國產(chǎn)和進(jìn)口設(shè)備的二次灌漿工程中使用?! rom table 6 data shows, BT-6022 early and late compressive strength at home and abroad, the flexural strength design requirements compared with ordinary co
ncrete more superior. Therefore, can early strength, high requirement of domestic and im
ported equipment of seco
ndary grouting engineering in use. 四、其它性能指標(biāo)Four, other performance index1 、鋼筋粘結(jié)強(qiáng)度1, steel bo
nding strength 對(duì)圓鋼筋一天的粘結(jié)強(qiáng)度已超過 6.0MPa ,對(duì)螺紋鋼筋一天的粘結(jié)強(qiáng)度已超過 13.0MPa 。因此, BT-6022灌漿料可部分代替環(huán)氧樹脂作地腳螺栓的錨固材料?! n circular reinforced day the bo
nding strength has been more than 6.0 MPa, screw steel day the bo
nding strength has exceeded 13.0 MPa. Therefore, BT-6022 grouting material will partly replaced epoxy resin as the anchor bolt anchor materials.2 、抗?jié)B性2, penetration-proof quality BT-6022灌漿料的抗?jié)B水性較一般防水混凝土能力好得多。機(jī)油滲透率、油滲深度、強(qiáng)度增長率等多項(xiàng)試驗(yàn)表明,該材料浸油后強(qiáng)度不降低,耐油滲性能好。 BT-6022 grouting material anti-permeability water is more general waterproof co
ncrete ability is much better. Oil permeability, oil infiltration depth and strength growth etc. Several experiments show that this material leaching after oil strength not decrease, oil resistant permeability good performance.3 、低溫和凍融性能3, low and freeze-thaw performance BT-6022具有良好的低溫性能,在冰箱 -5℃ ,環(huán)境 -10℃ 的條件下使用時(shí),其 7d 抗壓強(qiáng)度不低于 30MPa 。轉(zhuǎn)為標(biāo)溫養(yǎng)護(hù)后,其抗壓強(qiáng)度立即上升,能滿足較低溫度下的工程設(shè)計(jì)和施工要求。低溫型的 BT-6022 在凍融后強(qiáng)度幾乎不損失。因此,可適用于在凍融環(huán)境中的設(shè)備安裝工程?! T-6022 good low-temperature performance, in the refrigerator -5℃, enviro
nment -10℃ co
nditions when using, its 7d compressive strength of not less than 30MPa. To standard temperature curing, after the compressive strength immediately rise, can satisfy the under low temperature of engineering design and co
nstruction requirements. Low temperature type BT - 6022 in freeze-thaw after almost no strength loss. Therefore, can be applied to the frost enviro
nment of equipment installation project.4 、不導(dǎo)致鋼筋銹蝕4, without causing corrosion of reinforcement BT-6022灌漿材料往往與鋼筋和鐵制設(shè)備基礎(chǔ)長期接觸。試驗(yàn)表明其系列產(chǎn)品在自然電位處于鈍化狀態(tài) (0~300mV) ;試塊劈開后,所埋的鋼筋無腐蝕。因此,可以說BT-6022灌漿料不會(huì)導(dǎo)致鋼筋銹蝕?! T-6022 grouting material often with steel and iron equipment foundation long-term contact. Experiments show that the series product in natural potential in passivation state (0~300mV); Test-compo
nents split after buried reinforced non-corrosive. Therefore, it can be said that BT-6022 grouting material will not cause the rebar corrosion. 五、結(jié)論Five, the conclusion1 、BT-6022灌漿料有很好的流動(dòng)性,適用于設(shè)備的二次灌漿、地腳螺栓錨固和工程維修;1, BT-6022 grouting material has good liquidity, applicable to equipment of seco
ndary grouting, anchoring bolt anchor and engineering maintenance;2 、BT-6022灌漿料的初凝時(shí)間、終凝時(shí)間和膨脹率均滿足工程設(shè)計(jì)和施工要求;2, BT-6022 grouting material of initial set time, final set time and inflation will meet the engineering design and co
nstruction requirements;3 、BT-6022灌漿料具有很高的抗壓強(qiáng)度,完全可滿足國產(chǎn)和進(jìn)口設(shè)備對(duì)灌漿體強(qiáng)度的要求;3, BT-6022 grouting material has high compressive strength, can fully satisfy domestic and im
ported equipment for grouting body intensity requirements;4 、BT-6022灌漿料與鋼筋的粘結(jié)強(qiáng)度高,可替代環(huán)氧樹脂作為地腳螺栓的錨固材料,且在自然電位下對(duì)鋼筋無銹蝕作用。4, BT-6022 grouting materials and reinforced the bo
nding strength is high, can substitute the epoxy resin as the anchor bolt anchor materials, and in natural potential under no rust role of reinforced.5 、BT-6022 灌漿料的抗?jié)B水性好,抗油滲和浸蝕能力強(qiáng),低溫條件下強(qiáng)度較高,且抗凍融性較好。5, BT-6022 grouting material anti-permeability of oil and water resistance and good permeability and unpolluted ability, high strength, low temperature and freezing-thawing resisting better properties. BT-6022 灌漿料具有良好的耐疲勞性,在 200 萬次疲勞試驗(yàn)后,靜壓強(qiáng)度仍很高,而同條件下普通同標(biāo)號(hào)混凝土在 15 萬次時(shí)就已破壞。據(jù)國內(nèi)外資料顯示,摻灌漿料的彈性模量都低于普通混凝土,這有益于減緩設(shè)備的振動(dòng)荷載對(duì)基礎(chǔ)的沖擊壓力。在BT-6022灌漿料膨脹觀測(cè)過程中,灌漿料膨脹速率存在一定波動(dòng),經(jīng)數(shù)次試驗(yàn)分析,排除試驗(yàn)誤差后的影響,可能是受水泥熟料中不同礦物水化的影響,這一機(jī)理尚待證實(shí)。總而言之, BT-6022 灌漿料工程性能佳,適用范圍廣,是一種很好灌漿材料。 BT-6022 grouting material has good resistance to fatigue sex, in 200 million times fatigue test, static strength is still high, and under same co
nditions with label co
ncrete in ordinary 150,000 times when they have been destroyed. According to the domestic and foreign material shows, mixing with grouting material of elastic modulus is below normal concrete, it is good for slow equipment vibration load on basis of shock pressure.Grouting materials on BT-6022 expansive observation process, grouting material expansion rate fluctuation, there exist certain by several test analysis, eliminate the influence of test error may be due to the cement cl
inker different mineral hydration, the influence of this mechanism is yet to be /con
firm/ied. In short, BT-6022 grouting material engineering performance is good, application scope, is a kind of very good grouting material.