回彈法檢測混凝土抗壓強度技術規(guī)程（昆明地區(qū)分冊）

PAGE14PAGE1總則1.0.1為保證昆明地區(qū)使用回彈法檢測普通混凝土抗壓強度的檢測精度，制定本規(guī)程。1.0.2本規(guī)程適用于普通混凝土抗壓強度（以下簡稱混凝土強度）的檢測，不適用于表層與內(nèi)部質(zhì)量有明顯差異或內(nèi)部存在缺陷的混凝土強度的檢測。1.0.3使用回彈法進行檢測的人員，應通過專門的技術培訓。1.0.4回彈法檢測混凝土強度除應符合本規(guī)程外，尚應符合國家現(xiàn)行的有關標準的規(guī)定。

2術語、符號2.1術語2.1.1測區(qū)testarea檢測構件混凝土強度時的一個檢測單元。2.1.2測點testpoint測區(qū)內(nèi)的一個回彈檢測點。2.1.3測區(qū)混凝土強度換算值conversionvalueofconcretecompressivestrengthoftestarea由測區(qū)的平均回彈值和碳化深度值通過測強曲線或測區(qū)強度換算表得到的測區(qū)現(xiàn)齡期混凝土強度值。2.1.4混凝土強度推定值estimationvalueofstrengthforconcrete相應于強度換算值總體分布中保證率不低于95%的構件中的混凝土強度值。2.2符號——測區(qū)的平均碳化深度值。——第個測區(qū)碳化值的平均值；——測區(qū)混凝土強度換算值。——芯樣試件混凝土強度平均值?！瑮l件立方體試塊混凝土強度平均值?！獙阢@芯部位或同條件試塊回彈測區(qū)混凝土強度換算值的平均值?！趇個混凝土芯樣試件的抗壓強度。——第i個混凝土立方體試件的抗壓強度。——修正前第i個測區(qū)的混凝土強度換算值?！拚蟮趇個測區(qū)的混凝土強度換算值。——構件中測區(qū)混凝土強度換算值的最小值?！獦嫾炷翉姸韧贫ㄖ??！獪y區(qū)混凝土強度換算值的平均值?！獦嫾y區(qū)混凝土強度換算值的標準差?！獪y區(qū)第i個測點的回彈值。——測區(qū)或試塊的平均回彈值?！趥€測區(qū)回彈值的平均值；——回彈儀非水平狀態(tài)檢測時，測區(qū)的平均回彈值。——回彈儀在水平方向檢測混凝土澆筑表面時，測區(qū)的平均回彈值?！貜梼x在水平方向檢測混凝土澆筑底面時，測區(qū)的平均回彈值。——回彈儀檢測混凝土澆筑表面時，回彈值的修正值?！貜梼x檢測混凝土澆筑底面時，回彈值的修正值?！撬綘顟B(tài)檢測時，回彈值的修正值?！獪y區(qū)混凝土強度修正量。

3回彈儀3.1技術要求3.1.1回彈儀可為指針直讀式的，也可為數(shù)字式的。3.1.2回彈儀應具有產(chǎn)品合格證及計量檢定證書，并應在回彈儀的明顯位置上具有下列標志：名稱、型號、制造廠名（或商標）、出廠編號等。3.1.3回彈儀除應符合現(xiàn)行國家標準《回彈儀》GB/T9138的標準外，尚應符合下列規(guī)定：1水平彈擊時，在彈擊錘脫鉤瞬間，回彈儀的標稱能量為2.207J；2在彈擊錘與彈擊桿碰撞的瞬間，彈擊拉簧應處于自由狀態(tài)，且彈擊錘起跳點應位于指針指示刻度尺上“0”處；3在洛氏硬度HRC為60±2的鋼砧上，回彈儀的率定值為80±2；4數(shù)字式回彈儀應帶有指針直讀示值系統(tǒng)，數(shù)字顯示的回彈值與指針直讀示值相差不應超過1。3.1.4回彈儀使用時的環(huán)境溫度應為（0～35）℃。3.2檢定3.2.1回彈儀有下列情況之一時，應由計量檢定機構按現(xiàn)行行業(yè)標準《回彈儀》JJG817進行檢定：1新回彈儀啟用前；2超過檢定有效期；3數(shù)字式回彈儀數(shù)字顯示的回彈值與指針直讀示值相差大于1；4經(jīng)常規(guī)保養(yǎng)后，鋼砧率定值不合格；5遭受嚴重撞擊或其他損害。3.2.2在下列情況之一時，回彈儀應在鋼砧上進行率定試驗：1回彈儀當天使用前后；2測試過程中對回彈儀性能有懷疑時。當回彈儀率定值不在80±2范圍內(nèi)時，應按本規(guī)程第3.3節(jié)的要求，對回彈儀進行常規(guī)保養(yǎng)后再進行率定。若再次率定仍達不到要求，則應送檢定單位檢定。3.2.3回彈儀的率定試驗應符合下列規(guī)定：1率定試驗應在室溫為（0~35）℃的條件下進行；2鋼砧表面干燥、清潔，并應穩(wěn)固地平放在剛度大的物體上；3回彈值取連續(xù)向下彈擊三次的穩(wěn)定回彈結果的平均值；4率定試驗應分四個方向進行，每個方向彈擊前，彈擊桿旋轉(zhuǎn)90度，每個方向的回彈平均值均應為80±2。3.2.4回彈儀率定試驗所用的鋼砧應通過計量檢定機構檢定或校準。3.3保養(yǎng)3.3.1回彈儀具有下列情況之一時，應進行保養(yǎng)：1回彈儀彈擊超過2000次；2在鋼砧上的率定值不合格；3對檢測值有懷疑。3.3.2回彈儀的保養(yǎng)應按下列步驟進行：1先將彈擊錘脫鉤，取出機芯，然后卸下彈擊桿，取出里面的緩沖壓簧，并取出彈擊錘、彈擊拉簧和拉簧座。2清潔機芯各零部件，并應重點清理中心導桿、彈擊錘和彈擊桿的內(nèi)孔及沖擊面。清理后，應在中心導桿上薄薄涂抹鐘表油，其他零部件均不得抹油。3清理機殼內(nèi)壁，卸下刻度尺，檢查指針，其摩擦力為（0.5～0.8）N。4對于數(shù)字式回彈儀，還應按產(chǎn)品要求的維護程序進行維護。5保養(yǎng)時，不得旋轉(zhuǎn)尾蓋上已定位緊固的調(diào)零螺絲，不得自制或更換零部件。6保養(yǎng)后應按本規(guī)程第3.2.3條的規(guī)定進行率定。3.3.3回彈儀使用完畢，應使彈擊桿伸出機殼，并應清除彈擊桿、桿前端球面以及刻度尺表面和外殼上的污垢、塵土。回彈儀不用時，應將彈擊桿壓入儀器內(nèi)，彈擊后再按下按鈕，鎖住機芯，然后裝入儀器箱。儀器箱應平放在干燥陰涼處。數(shù)字式回彈儀長期不用時，應取出電池。

4檢測技術4.1一般規(guī)定4.1.1采用回彈法檢測混凝土強度時，宜具有下列資料：1工程名稱、勘察、設計、施工、監(jiān)督、監(jiān)理單位名稱；2構件名稱、數(shù)量及結構類型、混凝土強度設計等級；3水泥品種規(guī)格、砂石品種規(guī)格、外加劑、摻合料品種；混凝土配合比等；4施工模板，混凝土澆筑、養(yǎng)護情況及澆筑日期等；5必要的設計圖紙和施工記錄；6檢測原因。4.1.2回彈儀在檢測前后，均應在鋼砧上做率定試驗，并應符合本規(guī)程第3.1.3條的規(guī)定。4.1.3混凝土強度可按單個構件或按批量進行檢測，并應符合下列規(guī)定：1單個構件的檢測應符合本規(guī)程第4.1.4條的規(guī)定。2對于混凝土生產(chǎn)工藝、強度等級相同，原材料、配合比、養(yǎng)護條件基本一致且齡期相近的一批構件的檢測可采用批量檢測。按批量進行檢測時，隨機抽取構件，抽檢數(shù)量不宜少于同批構件總數(shù)的30%且不宜少于10件。當檢驗批構件數(shù)量大于30個時，抽樣構件數(shù)量可按國家標準《建筑結構檢測技術標準》GB/T50344的規(guī)定抽樣。4.1.4單一構件的檢測應符合下列規(guī)定：1對于一般構件，測區(qū)數(shù)不宜少于10個。當受檢構件數(shù)量大于30個且不需提供單個構件推定強度或受檢構件某一方向尺寸不大于4.5m且另一方向尺寸不大于0.3m時，每個構件的測區(qū)數(shù)量可適當減少，但不應少于5個。2相鄰兩測區(qū)的間距不應大于2m，測區(qū)離構件端部或施工縫邊緣的距離不宜大于0.5m，且不宜小于50mm。3測區(qū)宜選在使回彈儀處于水平方向的混凝土澆筑側面。當不能滿足這一要求時，也可選在使回彈儀處于非水平方向的混凝土澆筑表面或底面。4測區(qū)宜布置在構件的兩個對稱的可測面上，當不能布置在對稱的可測面上時，也可布置在同一可測面上，且應均勻分布。在構件的重要部位及薄弱部位應布置測區(qū)，并應避開預埋件。5測區(qū)的面積不宜大于0.04m2；6測區(qū)表面清潔、平整，不應有疏松層、浮漿、油垢、涂層以及蜂窩、麻面等不良狀況。7對彈擊時可能產(chǎn)生顫動的薄壁、小型構件，應進行固定。4.1.5測區(qū)應標有清晰的編號，在記錄紙上或采用電子媒體記錄方式，繪制測區(qū)布置示意圖和描述外觀質(zhì)量情況。4.1.6當檢測條件與本規(guī)程第6.2.1條和第6.2.2條的使用條件有較大差異時，可采用在構件上鉆取的混凝土芯樣或同條件試塊對測區(qū)混凝土強度換算值進行修正。對同一強度等級混凝土修正時，芯樣數(shù)量不應少于6個，芯樣應在測區(qū)內(nèi)鉆取，芯樣高徑比應為1。同條件試塊修正時，試塊數(shù)量不應少于6個，試塊邊長應為150mm。計算時，測區(qū)混凝土強度修正量及測區(qū)混凝土強度換算值的修正應符合下列規(guī)定：1修正量應按下列公式計算：(4.1.6-1)(4.1.6-2)(4.1.6-3)(4.1.6-4)(4.1.6-5)式中：——測區(qū)混凝土強度修正值（MPa），精確到0.1MPa；——芯樣試件混凝土強度平均值（MPa），精確到0.1MPa；——150mm同條件立方體試塊混凝土強度平均值（MPa），精確到0.1MPa；——對應于鉆芯部位或同條件立方體試塊回彈測區(qū)混凝土強度換算值的平均值（MPa），精確到0.1MPa；——第i個混凝土芯樣試件的抗壓強度；——第i個混凝土立方體試塊的抗壓強度；——對應于第i個芯樣部位或同條件立方體試塊測區(qū)回彈值和碳化深度值的混凝土強度換算值，可按本規(guī)程附錄A或附錄B取值；——芯樣或試塊數(shù)量。2測區(qū)混凝土強度換算值的修正應按下式計算：(4.1.6-6)式中：——第i個測區(qū)修正前的混凝土強度換算值（MPa），精確到0.1MPa；——第i個測區(qū)修正后的混凝土強度換算值（MPa），精確到0.1MPa。4.2回彈值測量4.2.1測量回彈值時，回彈儀的軸線應始終垂直于混凝土檢測面，并應緩慢施壓、準確讀數(shù)、快速復位。4.2.2每一測區(qū)應讀取16個回彈值，每一測點的回彈值讀數(shù)應精確至1。測點宜在測區(qū)范圍內(nèi)均勻分布，相鄰兩測點的凈距離不宜小于20mm；測點距外露鋼筋、預埋件的距離不宜小于30mm；測點不應在氣孔或外露石子上，同一測點應只彈擊一次。4.3碳化深度值測量4.3.1回彈值測量完畢后，應在有代表性的測區(qū)位置上測量碳化深度值，測點數(shù)不應少于構件測區(qū)數(shù)的30%，應取其平均值作為該構件每個測區(qū)的碳化深度值。當碳化深度值極差大于2.0mm時，應在每一測區(qū)分別測量碳化深度值。4.3.2碳化深度值的測量應符合下列規(guī)定：1可采用適當?shù)墓ぞ咴跍y區(qū)表面形成直徑約15mm的孔洞，其深度應大于混凝土的碳化深度；2清除孔洞中的粉末和碎屑，且不得用水擦洗；3采用濃度為1%~2%的酚酞酒精溶液滴在孔洞內(nèi)壁的邊緣處，當已碳化與未碳化界線清晰時，采用碳化深度測量儀測量已碳化與未碳化混凝土交界面到混凝土表面的垂直距離，并應測量3次，每次讀數(shù)精確至0.25mm。4應取三次測量的平均值作為檢測結果，并應精確至0.5mm。

5回彈值計算5.0.1計算測區(qū)平均回彈值時，應從該測區(qū)的16個回彈值中剔除3個最大值和3個最小值，用余下的10個回彈值按下式計算：(5.0.1)式中：Rm——測區(qū)平均回彈值，精確至0.1；R——第i個測點的回彈值。5.0.2非水平方向檢測混凝土澆筑側面時，測區(qū)的平均回彈值應按下式修正：(5.0.2)式中——非水平狀態(tài)檢測時測區(qū)的平均回彈值，精確至0.1；——非水平狀態(tài)檢測時回彈值修正值，應按本規(guī)程附錄B選用。5.0.3水平方向檢測混凝土澆筑表面或澆筑底面時，測區(qū)的平均回彈值應按下列公式修正：(5.0.3-1)(5.0.3-2)式中：、——水平方向檢測混凝土澆筑表面、底面時，測區(qū)的平均回彈值，精確至0.1；.、——混凝土澆筑表面、底面回彈值的修正值，應按本規(guī)程附錄C采用。5.0.4當回彈儀為非水平方向且測試面為混凝土的非澆筑側面時，應先對回彈值進行角度修正，并應對修正后的回彈值再進行澆筑面修正。

6測強曲線6.1一般規(guī)定6.1.1混凝土強度換算值可采用下列測強曲線計算：1統(tǒng)一測強曲線：由全國有代表性的材料、成型工藝制作的混凝土試塊，通過試驗所建立的測強曲線。2地區(qū)測強曲線：由本地區(qū)常用的材料、成型工藝制作的混凝土試件，通過試驗所建立的測強曲線。3專用測強曲線：由與構件混凝土相同的材料、成型養(yǎng)護工藝制作的混凝土試件，通過試驗所建立的測強曲線。6.1.2檢測單位宜按專用測強曲線、地區(qū)測強曲線、統(tǒng)一測強曲線的順序選用測強曲線。6.2昆明地區(qū)測強曲線6.2.1符合下列條件的混凝土，測區(qū)強度應按本規(guī)程附錄A進行強度換算：1混凝土采用的水泥、砂石、外加劑、摻合料、拌和用水符合國家現(xiàn)行有關標準；2采用普通成型工藝；3采用符合國家標準規(guī)定的模板；4蒸汽養(yǎng)護出池經(jīng)自然養(yǎng)護7d以上，且混凝土表層為干燥狀態(tài)；5自然養(yǎng)護且齡期為：（14～1000）d；6抗壓強度為：（15.0～60.0）MPa。6.2.2當有下列情況之一時，測區(qū)混凝土強度不得按本規(guī)程附錄A進行強度換算。1混凝土粗骨料最大公稱粒徑大于60mm；2粗骨料為河卵石；2特種成型工藝制作的混凝土；3檢測部位曲率半徑小于250mm；4潮濕或浸水混凝土。6.2.4使用本規(guī)程測強曲線時，被檢測的混凝土應與制定該類測強曲線混凝土的適應條件相同，不得超出該類測強曲線的適應范圍。每半年抽取一定數(shù)量的同條件試件進行校核，當存在顯著差異時，應查找原因，不得繼續(xù)使用。

7混凝土強度的計算7.0.1構件第i個測區(qū)混凝土強度換算值，可按本規(guī)程第5章所求得的平均回彈值（Rm）及本規(guī)程第4.3條所求得的平均碳化深度值（dm）由本規(guī)程附錄A查表或根據(jù)下列公式計算確定：(7.0.1)式中：——第個測區(qū)的混凝土強度換算值(MPa)，精確至0.1MPa；.——第個測區(qū)回彈值的平均值，精確至0.1；——第個測區(qū)碳化值的平均值，精確至0.5mm。7.0.2構件的測區(qū)混凝土強度平均值應根據(jù)各測區(qū)的混凝土強度換算值計算。當測區(qū)數(shù)為10個及以上時，還應計算強度標準差。平均值及標準差應按下列公式計算：(7.0.2-1)(7.0.2-2)式中：——同批構件測區(qū)混凝土強度換算值的平均值（MPa）,精確至0.1MPa；——對于單個檢測的構件，取該構件的測區(qū)數(shù)；對批量檢測的構件，取所有被抽檢構件測區(qū)數(shù)之和；——結構或構件測區(qū)混凝土強度換算值的標準差（MPa），精確至0.01MPa。7.0.3構件的現(xiàn)齡期強度推定值（）應符合下列規(guī)定：1當構件測區(qū)數(shù)少于10個時，應按下式計算：(7.0.3-1)式中：——構件中最小的測區(qū)混凝土強度換算值。2當構件的測區(qū)強度值中出現(xiàn)小于15.0MPa時，應按下式確定：(7.0.3-2)3當構件測區(qū)數(shù)不少于10個時，應按下式計算：(7.0.3-3)4當按批檢測時，應按下式計算：(7.0.3-4)式中：k——推定系數(shù)，宜取1.645。當需要進行推定強度區(qū)間時，可按國家現(xiàn)行有關標準的規(guī)定取值。7.0.4對按批量檢測的構件，當該批構件混凝土強度標準差出現(xiàn)下列情況之一時，該批構件應全部按單個構件檢測：1當該批構件混凝土強度平均值小于25MPa時、大于4.5MPa時；2當該批構件混凝土強度平均值不小于25MPa且不大于60MPa、大于5.5MPa時。7.0.5回彈法檢測混凝土抗壓強度報告可按本規(guī)程附錄D的格式編寫。

附錄A測區(qū)混凝土強度換算表平均回彈值Rm測區(qū)混凝土強度換算值（MPa）平均碳化深度dm(mm)0.00.51.01.52.02.53.03.54.04.55.05.5≥6.019.515.1－－－－－－－－－－－－19.615.3－－－－－－－－－－－－19.715.415.1－－－－－－－－－－－19.815.615.3－－－－－－－－－－－19.915.815.515.2－－－－－－－－－－20.015.915.615.3－－－－－－－－－－20.116.115.815.515.2－－－－－－－－－20.216.316.015.615.3－－－－－－－－－20.316.416.115.815.515.2－－－－－－－－20.416.616.316.015.715.3－－－－－－－－20.516.816.516.115.815.515.2－－－－－－－20.617.016.616.316.015.715.3－－－－－－－20.717.116.816.516.115.815.515.2－－－－－－20.817.316.916.616.316.015.615.3－－－－－－20.917.517.116.816.416.115.815.515.2－－－－－21.017.617.316.916.616.316.015.615.3－－－－－21.117.817.417.116.816.416.115.815.515.2－－－－21.218.017.617.316.916.616.315.915.615.3－－－－21.318.117.817.417.116.716.416.115.815.515.2－－－21.418.317.917.617.216.916.616.215.915.615.3－－－21.518.518.117.717.417.016.716.416.115.715.415.1－－21.618.618.317.917.617.216.916.516.215.915.615.3－－21.718.818.418.117.717.417.016.716.416.015.715.4－－21.819.018.618.217.917.517.216.816.516.215.915.515.2－21.919.118.818.418.017.717.317.016.616.316.015.715.4－22.019.318.918.518.217.817.517.116.816.516.115.815.515.222.119.519.118.718.318.017.617.316.916.616.316.015.615.322.219.619.318.918.518.117.817.417.116.716.416.115.815.522.319.819.419.018.718.317.917.617.216.916.616.215.915.622.420.019.619.218.818.418.117.717.417.016.716.416.015.722.520.119.719.419.018.618.217.917.517.216.816.516.215.922.620.319.919.519.118.818.418.017.717.317.016.616.316.022.720.520.119.719.318.918.518.217.817.517.116.816.416.122.820.620.219.819.419.118.718.318.017.617.316.916.616.322.920.820.420.019.619.218.818.518.117.717.417.116.716.423.021.020.620.219.819.419.018.618.217.917.517.216.916.523.121.120.720.319.919.519.118.818.418.017.717.317.016.7續(xù)表平均回彈值Rm測區(qū)混凝土強度換算值（MPa）平均碳化深度dm(mm)0.00.51.01.52.02.53.03.54.04.55.05.5≥6.023.221.320.920.520.119.719.318.918.518.217.817.517.116.823.321.521.120.620.219.819.419.118.718.318.017.617.316.923.421.721.220.820.420.019.619.218.818.518.117.717.417.023.521.821.421.020.620.119.819.419.018.618.217.917.517.223.622.021.621.120.720.319.919.519.118.718.418.017.717.323.722.221.721.320.920.520.119.719.318.918.518.217.817.423.822.321.921.421.020.620.219.819.419.018.718.317.917.623.922.522.021.621.220.820.420.019.619.218.818.418.117.724.022.722.221.821.320.920.520.119.719.318.918.618.217.824.122.822.421.921.521.120.720.319.919.519.118.718.318.024.223.022.522.121.721.220.820.420.019.619.218.818.518.124.323.222.722.321.821.421.020.620.119.719.419.018.618.224.423.322.922.422.021.521.120.720.319.919.519.118.718.424.523.523.022.622.121.721.320.820.420.019.619.318.918.524.623.723.222.722.321.821.421.020.620.219.819.419.018.624.723.823.422.922.422.021.621.120.720.319.919.519.118.824.824.023.523.122.622.221.721.320.920.520.119.719.318.924.924.223.723.222.822.321.921.421.020.620.219.819.419.025.024.323.923.422.922.522.021.621.220.720.319.919.519.225.124.524.023.523.122.622.221.721.320.920.520.119.719.325.224.724.223.723.222.822.321.921.521.020.620.219.819.425.324.824.323.923.422.922.522.021.621.220.820.319.919.625.425.024.524.023.623.122.622.221.721.320.920.520.119.725.525.224.724.223.723.222.822.321.921.521.020.620.219.825.625.324.824.323.923.422.922.522.021.621.220.820.419.925.725.525.024.524.023.623.122.622.221.721.320.920.520.125.825.725.224.724.223.723.222.822.321.921.521.020.620.225.925.825.324.824.323.923.422.922.522.021.621.220.820.326.026.025.525.024.524.023.523.122.622.221.721.320.920.526.126.225.725.224.724.223.723.222.822.321.921.421.020.626.226.325.825.324.824.323.823.422.922.522.021.621.220.726.326.526.025.525.024.524.023.523.122.622.221.721.320.926.426.726.125.625.124.624.123.723.222.722.321.921.421.026.526.826.325.825.324.824.323.823.322.922.422.021.621.126.627.026.526.025.424.924.424.023.523.022.622.121.721.326.727.226.626.125.625.124.624.123.623.222.722.321.821.426.827.326.826.325.825.224.824.323.823.322.922.422.021.526.927.527.026.425.925.424.924.423.923.523.022.522.121.7續(xù)表平均回彈值Rm測區(qū)混凝土強度換算值（MPa）平均碳化深度dm(mm)0.00.51.01.52.02.53.03.54.04.55.05.5≥6.027.027.727.126.626.125.625.124.624.123.623.122.722.221.827.127.827.326.826.225.725.224.724.223.723.322.822.421.927.228.027.526.926.425.925.424.924.423.923.423.022.522.127.328.227.627.126.526.025.525.024.524.023.623.122.622.227.428.327.827.226.726.225.725.224.724.223.723.222.822.327.528.528.027.426.926.325.825.324.824.323.823.422.922.527.628.728.127.627.026.526.025.524.924.524.023.523.022.627.728.828.327.727.226.626.125.625.124.624.123.623.222.727.829.028.427.927.326.826.325.725.224.724.323.823.322.827.929.228.628.027.526.926.425.925.424.924.423.923.423.028.029.328.828.227.627.126.626.025.525.024.524.023.623.128.129.528.928.427.827.326.726.225.725.224.724.223.723.228.229.729.128.528.027.426.926.325.825.324.824.323.823.428.329.929.328.728.127.627.026.526.025.525.024.524.023.528.430.029.428.828.327.727.226.626.125.625.124.624.123.628.530.229.629.028.427.927.326.826.325.725.224.724.223.828.630.429.829.228.628.027.526.926.425.925.424.924.423.928.730.529.929.328.728.227.627.126.526.025.525.024.524.028.830.730.129.528.928.327.827.226.726.225.725.124.624.228.930.930.229.629.128.527.927.426.826.325.825.324.824.329.031.030.429.829.228.628.127.527.026.525.925.424.924.429.131.230.630.029.428.828.227.727.126.626.125.625.124.629.231.430.730.129.529.028.427.827.326.726.225.725.224.729.331.530.930.329.729.128.528.027.426.926.325.825.324.829.431.731.130.529.829.328.728.127.627.026.526.025.525.029.531.931.230.630.029.428.828.327.727.226.626.125.625.129.632.031.430.830.229.629.028.427.927.326.826.225.725.229.732.231.630.930.329.729.128.628.027.426.926.425.925.329.832.431.731.130.529.929.328.728.127.627.026.526.025.529.932.531.931.330.630.029.428.928.327.727.226.626.125.630.032.732.031.430.830.229.629.028.427.927.326.826.325.730.132.932.231.631.030.329.729.228.628.027.526.926.425.930.233.032.431.731.130.529.929.328.728.227.627.126.526.030.333.232.531.931.330.630.029.528.928.327.727.226.726.130.433.432.732.131.430.830.229.629.028.427.927.326.826.330.533.532.932.231.631.030.329.729.228.628.027.526.926.430.633.733.032.431.731.130.529.929.328.728.227.627.126.530.733.933.232.531.931.330.630.029.528.928.327.727.226.7續(xù)表平均回彈值Rm測區(qū)混凝土強度換算值（MPa）平均碳化深度dm(mm)0.00.51.01.52.02.53.03.54.04.55.05.5≥6.030.834.033.432.732.131.430.830.229.629.028.427.927.326.830.934.233.532.932.231.630.930.329.729.228.628.027.526.931.034.433.733.032.431.731.130.529.929.328.728.227.627.131.134.533.833.232.531.931.330.630.029.428.928.327.727.231.234.734.033.332.732.031.430.830.229.629.028.427.927.331.334.934.233.532.832.231.630.930.329.729.128.628.027.431.435.034.333.733.032.331.731.130.529.929.328.728.127.631.535.234.533.833.132.531.931.230.630.029.428.828.327.731.635.434.734.033.332.632.031.430.830.129.629.028.427.831.735.534.834.133.532.832.231.530.930.329.729.128.528.031.835.735.034.333.633.032.331.731.030.429.829.228.728.131.935.935.234.533.833.132.531.831.230.630.029.428.828.232.036.035.334.633.933.332.632.031.330.730.129.528.928.432.136.235.534.834.133.432.832.131.530.930.329.729.128.532.236.435.634.934.233.632.932.331.631.030.429.829.228.632.336.535.835.134.433.733.132.431.831.130.529.929.328.832.436.736.035.334.633.933.232.631.931.330.730.129.528.932.536.936.135.434.734.033.432.732.131.430.830.229.629.032.637.036.335.634.934.233.532.932.231.630.930.329.729.232.737.236.535.735.034.333.733.032.431.731.130.529.929.332.837.436.635.935.234.533.833.132.531.931.230.630.029.432.937.536.836.135.334.634.033.332.632.031.430.730.129.533.037.736.936.235.534.834.133.432.832.131.530.930.329.733.137.937.136.435.735.034.333.632.932.331.631.030.429.833.238.037.336.535.835.134.433.733.132.431.831.230.529.933.338.237.436.736.035.334.633.933.232.631.931.330.730.133.438.437.636.936.135.434.734.033.432.732.131.430.830.233.538.537.837.036.335.634.934.233.532.832.231.630.930.333.638.737.937.236.435.735.034.333.733.032.331.731.130.533.738.938.137.336.635.935.234.533.833.132.531.831.230.633.839.038.337.536.836.035.334.633.933.332.632.031.330.733.939.238.437.736.936.235.534.834.133.432.832.131.530.934.039.438.637.837.136.335.634.934.233.632.932.231.631.034.139.538.738.037.236.535.835.134.433.733.032.431.731.134.239.738.938.137.436.635.935.234.533.833.232.531.931.234.339.939.138.337.536.836.135.434.734.033.332.732.031.434.440.039.238.537.737.036.235.534.834.133.532.832.131.534.540.239.438.637.937.136.435.735.034.333.632.932.331.6續(xù)表平均回彈值Rm測區(qū)混凝土強度換算值（MPa）平均碳化深度dm(mm)0.00.51.01.52.02.53.03.54.04.55.05.5≥6.034.640.439.638.838.037.336.535.835.134.433.733.132.431.834.740.539.738.938.237.436.736.035.234.633.933.232.531.934.840.739.939.138.337.636.836.135.434.734.033.332.732.034.940.940.039.338.537.737.036.235.534.834.133.532.832.235.041.040.239.438.637.937.136.435.735.034.333.632.932.335.141.240.439.638.838.037.336.535.835.134.433.733.132.435.241.340.539.739.038.237.436.736.035.334.633.933.232.635.341.540.739.939.138.337.636.836.135.434.734.033.332.735.441.740.940.139.338.537.737.036.335.534.834.233.532.835.541.841.040.239.438.637.937.136.435.735.034.333.633.035.642.041.240.439.638.838.037.336.535.835.134.433.733.135.742.241.340.539.739.038.237.436.736.035.334.633.933.235.842.341.540.739.939.138.337.636.836.135.434.734.033.335.942.541.740.940.039.338.537.737.036.335.534.834.133.536.042.741.841.040.239.438.637.937.136.435.735.034.333.636.142.842.041.240.439.638.838.037.336.535.835.134.433.736.243.042.241.340.539.738.938.237.436.736.035.234.533.936.343.242.341.540.739.939.138.337.636.836.135.434.734.036.443.342.541.740.840.039.238.537.737.036.235.534.834.136.543.542.741.841.040.239.438.637.837.136.435.734.934.336.643.742.842.041.140.339.538.838.037.236.535.835.134.436.743.843.042.141.340.539.738.938.137.436.635.935.234.536.844.043.142.341.540.639.839.138.337.536.836.135.334.736.944.243.342.441.640.840.039.238.437.736.936.235.534.837.044.343.542.641.840.940.139.338.637.837.136.335.634.937.144.543.642.841.941.140.339.538.738.037.236.535.735.037.244.743.842.942.141.340.439.638.938.137.336.635.935.237.344.844.043.142.241.440.639.839.038.237.536.736.035.337.445.044.143.242.441.640.739.939.138.437.636.936.135.437.545.244.343.442.641.740.940.139.338.537.837.036.335.637.645.344.443.642.741.941.040.239.438.737.937.136.435.737.745.544.643.742.942.041.240.439.638.838.037.336.535.837.845.744.843.943.042.241.340.539.738.938.237.436.736.037.945.844.944.043.242.341.540.739.939.138.337.636.836.138.046.045.144.243.342.541.640.840.039.238.537.736.936.238.146.245.344.443.542.641.841.040.239.438.637.837.136.438.246.345.444.543.642.841.941.140.339.538.738.037.236.538.346.545.644.743.842.942.141.340.439.638.938.137.336.6續(xù)表平均回彈值Rm測區(qū)混凝土強度換算值（MPa）平均碳化深度dm(mm)0.00.51.01.52.02.53.03.54.04.55.05.5≥6.038.446.745.744.844.043.142.241.440.639.839.038.237.536.738.546.845.945.044.143.242.441.640.739.939.138.437.636.938.647.046.145.244.343.442.541.740.940.139.338.537.737.038.747.246.245.344.443.542.741.841.040.239.438.637.937.138.847.346.445.544.643.742.842.041.240.439.638.838.037.338.947.546.645.644.743.943.042.141.340.539.738.938.137.439.047.746.745.844.944.043.142.341.540.639.839.138.337.539.147.846.946.045.144.243.342.441.640.840.039.238.437.739.248.047.046.145.244.343.442.641.740.940.139.338.537.839.348.247.246.345.444.543.642.741.941.140.339.538.737.939.448.347.446.445.544.643.742.942.041.240.439.638.838.039.548.547.546.645.744.843.943.042.241.340.539.738.938.239.648.747.746.845.844.944.043.242.341.540.739.939.138.339.748.847.946.946.045.144.243.342.541.640.840.039.238.439.849.048.047.146.145.244.343.542.641.840.940.139.338.639.949.248.247.246.345.444.543.642.841.941.140.339.538.740.049.348.347.446.545.544.643.842.942.141.240.439.638.840.149.548.547.546.645.744.843.943.042.241.440.539.739.040.249.648.747.746.845.844.944.143.242.341.540.739.939.140.349.848.847.946.946.045.144.243.342.541.640.840.039.240.450.049.048.047.146.245.244.343.542.641.841.040.139.440.550.149.248.247.246.345.444.543.642.841.941.140.339.540.650.349.348.347.446.545.544.643.842.942.141.240.439.640.750.549.548.547.546.645.744.843.943.042.241.440.539.740.850.649.648.747.746.845.844.944.143.242.341.540.739.940.950.849.848.847.946.946.045.144.243.342.541.640.840.041.051.050.049.048.047.146.145.244.343.542.641.840.940.141.151.150.149.148.247.246.345.444.543.642.741.941.140.341.251.350.349.348.347.446.445.544.643.742.942.041.240.441.351.550.549.548.547.546.645.744.843.943.042.241.340.541.451.650.649.648.647.746.745.844.944.043.242.341.540.741.551.850.849.848.847.846.946.045.144.243.342.441.640.841.652.050.949.949.048.047.046.145.244.343.442.641.740.941.752.151.150.149.148.147.246.345.344.543.642.741.941.041.852.351.350.349.348.347.346.445.544.643.742.942.041.241.952.551.450.449.448.447.546.645.644.743.943.042.141.342.052.651.650.649.648.647.646.745.844.944.043.142.341.442.152.851.850.749.748.747.846.845.945.044.143.342.441.6續(xù)表平均回彈值Rm測區(qū)混凝土強度換算值（MPa）平均碳化深度dm(mm)0.00.51.01.52.02.53.03.54.04.55.05.5≥6.042.253.051.950.949.948.947.947.046.145.244.343.442.541.742.353.152.151.050.049.148.147.146.245.344.443.542.741.842.453.352.251.250.249.248.247.346.445.444.543.742.842.042.553.552.451.450.449.448.447.446.545.644.743.842.942.142.653.652.651.550.549.548.547.646.645.744.843.943.142.242.753.852.751.750.749.748.747.746.845.945.044.143.242.442.854.052.951.850.849.848.847.946.946.045.144.243.342.542.954.153.052.051.050.049.048.047.146.145.244.343.542.643.054.353.252.251.150.149.148.247.246.345.444.543.642.743.154.453.452.351.350.349.348.347.446.445.544.643.742.943.254.653.552.551.450.449.448.547.546.645.644.743.943.043.354.853.752.651.650.649.648.647.646.745.844.944.043.143.454.953.952.851.850.749.748.847.846.845.945.044.143.343.555.154.053.051.950.949.948.947.947.046.145.244.343.443.655.354.253.152.151.050.049.048.147.146.245.344.443.543.755.454.353.352.251.250.249.248.247.346.345.444.543.743.855.654.553.452.451.350.349.348.447.446.545.644.743.843.955.854.753.652.551.550.549.548.547.646.645.744.843.944.055.954.853.752.751.750.649.648.747.746.845.844.944.044.156.155.053.952.851.850.849.848.847.846.946.045.144.244.256.355.254.153.052.050.949.948.948.047.046.145.244.344.356.455.354.253.252.151.150.149.148.147.246.245.344.444.456.655.554.453.352.351.250.249.248.347.346.445.544.644.556.855.654.553.552.451.450.449.448.447.446.545.644.744.656.955.854.753.652.651.550.549.548.547.646.645.744.844.757.156.054.953.852.751.750.749.748.747.746.845.945.044.857.356.155.053.952.951.850.849.848.847.946.946.045.144.957.456.355.254.153.052.051.049.949.048.047.146.145.245.057.656.455.354.253.252.151.150.149.148.147.246.345.345.157.856.655.554.453.352.351.250.249.248.347.346.445.545.257.956.855.754.653.552.451.450.449.448.447.546.545.645.358.156.955.854.753.652.651.550.549.548.547.646.745.745.458.257.156.054.953.852.751.750.749.748.747.746.845.945.558.457.356.155.053.952.951.850.849.848.847.946.946.045.658.657.456.355.254.153.052.051.049.949.048.047.146.145.758.757.656.455.354.253.252.151.150.149.148.147.246.345.858.957.756.655.554.453.352.351.250.249.248.347.346.445.959.157.956.855.654.553.552.451.450.449.448.447.446.5續(xù)表平均回彈值Rm測區(qū)混凝土強度換算值（MPa）平均碳化深度dm(mm)0.00.51.01.52.02.53.03.54.04.55.05.5≥6.046.059.258.156.955.854.753.652.651.550.549.548.547.646.646.159.458.257.156.054.953.852.751.750.749.748.747.746.846.259.658.457.256.155.053.952.951.850.849.848.847.846.946.359.758.657.456.355.254.153.052.050.949.948.948.047.046.459.958.757.656.455.354.253.152.151.150.149.148.147.246.560.058.957.756.655.554.453.352.251.250.249.248.247.346.6－59.057.956.755.654.553.452.451.450.349.348.447.446.7－59.258.056.955.854.753.652.551.550.549.548.547.646.8－59.458.257.055.954.853.752.751.650.649.648.647.746.9－59.558.357.256.155.053.952.851.850.849.848.847.847.0－59.758.557.456.255.154.053.051.950.949.948.947.947.1－59.858.757.556.455.354.253.152.151.050.049.048.147.2－－58.857.756.555.454.353.252.251.250.249.248.247.3－－59.057.856.755.654.553.452.351.350.349.348.347.4－－59.158.056.855.754.653.552.551.450.449.448.547.5－－59.358.157.055.954.853.752.651.650.649.648.647.6－－59.558.357.156.054.953.852.851.750.749.748.747.7－－59.658.457.356.255.154.052.951.950.849.848.847.8－－59.858.657.456.355.254.153.052.051.050.049.047.9－－59.958.857.656.555.354.353.252.151.150.149.148.0－－－58.957.756.655.554.453.352.351.250.249.248.1－－－59.157.956.855.654.553.552.451.450.449.448.2－－－59.258.056.955.854.753.652.551.550.549.548.3－－－59.458.257.155.954.853.752.751.650.649.648.4－－－59.558.457.256.155.053.952.851.850.849.848.5－－－59.758.557.456.255.154.053.051.950.949.948.6－－－59.858.757.556.455.354.253.152.051.050.048.7－－－－58.857.656.5