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  產品資料表

西卡控制 ® ® ^(®){ }^{\circledR} SRA 872 SA

  (原 ML SRA872 SA)
減縮劑

  描述

SikaControl ® ® ^(®){ }^{\circledR} SRA 872 SA 是一種減縮劑,專門用於減少混凝土和砂漿的乾燥收縮以及隨後開裂的可能性。
SikaControl ® ® ^(®){ }^{\circledR} SRA 872 SA 外加劑可透過降低孔隙水的毛細管張力(乾燥收縮的主要原因)發揮作用。
適合在炎熱和熱帶氣候條件下使用。

  用途

SikaControl ® ® ^(®){ }^{\circledR} SRA 872 SA 用於生產高性能混凝土,大大減少乾燥收縮,從而使混凝土結構的耐久性顯著提高。
SikaControl ® ® ^(®){ }^{\circledR} SRA 872 SA 主要用於以下應用:
  • 對裂縫寬度限制有嚴格要求的結構
  • 在混凝土中,低乾燥收縮很重要
  • 現澆混凝土樓板的收縮減少可最大程度地降低相同接縫間距下的開裂風險,因此允許更寬的接縫間距而不會增加收縮開裂的風險
  • 在薄黏合面層中,盡量減少與現有基材的收縮差異
  • 在限制收縮的混凝土構件中
  • 海洋環境中混凝土的耐久性增強
  • 透過減少混凝土的乾燥收縮來提高擋水混凝土結構的防水性,從而降低裂縫發展的風險
  • 要求減少收縮和長期耐久性的預拌或預製混凝土結構
  •   濕噴混凝土
  •   砂漿和灌漿

特點/優勢

SikaControl ® ® ^(®){ }^{\circledR} SRA 872 SA 增加混凝土孔隙系統內的凝聚力。水分流失引起的收縮減少,導致正確設計的混凝土混合物和結構中的乾燥收縮明顯減少,從而減少收縮開裂。
使用 SikaControl ® ® ^(®){ }^{\circledR} SRA 872 SA 可以實現以下優勢:
  • 減少乾燥收縮開裂
  • 降低板坯捲曲的可能性
  •   滲透性降低
  • 提高混凝土耐久性
  • 顯著減少乾燥收縮,28 天內最多可減少 80 % 80 % 80%80 \% ,一年及以後最多可減少 50 % 50 % 50%50 \%
    SikaControl ® ® ^(®){ }^{\circledR} SRA 872 SA 不含氯化物或任何其他促進鋼腐蝕的成分。因此它適用於鋼筋和預力混凝土結構。

  產品資料表

西卡控制 ^(o+){ }^{\oplus} SRA 872 SA
2024 年 10 月,版本 01.01
021403041000000072
  包裝 210 公升桶裝和 1,000 公升 IBC 容器
  外觀/顏色   透明液體
  保存期限 若儲存得當,自生產日起 12 個月
  儲存條件
存放在乾燥、未損壞、未開封的原密封包裝中 在溫度之間 + 5 +5^(@)攝氏度 +5^{\circ} \mathrm{C} + 50 +50^(@)攝氏度 +50^{\circ} \mathrm{C} 。使用前請充分攪拌。
Store in undamaged, unopened, original sealed packaging in dry conditions at temperatures between +5^(@)C and +50^(@)C. Mix well before using.| Store in undamaged, unopened, original sealed packaging in dry conditions | | :--- | | at temperatures between $+5^{\circ} \mathrm{C}$ and $+50^{\circ} \mathrm{C}$. Mix well before using. |
  密度 1.01 kg / l ( + 25 C ) 1.01 kg / l + 25 C ∼1.01kg//l(+25^(@)C)\sim 1.01 \mathrm{~kg} / \mathrm{l}\left(+25^{\circ} \mathrm{C}\right)
總氯化物含量   
Packaging 210 L drum and 1,000 L IBC Appearance / Colour Clear liquid Shelf Life 12 months from date of production if stored properly Storage Conditions "Store in undamaged, unopened, original sealed packaging in dry conditions at temperatures between +5^(@)C and +50^(@)C. Mix well before using." Density ∼1.01kg//l(+25^(@)C) Total Chloride lon Content Nil| Packaging | 210 L drum and 1,000 L IBC | | :--- | :--- | | Appearance / Colour | Clear liquid | | Shelf Life | 12 months from date of production if stored properly | | Storage Conditions | Store in undamaged, unopened, original sealed packaging in dry conditions <br> at temperatures between $+5^{\circ} \mathrm{C}$ and $+50^{\circ} \mathrm{C}$. Mix well before using. | | Density | $\sim 1.01 \mathrm{~kg} / \mathrm{l}\left(+25^{\circ} \mathrm{C}\right)$ | | Total Chloride lon Content | Nil |

  科技資訊

  混凝土澆築指導
混凝土生產和澆築良好規範標準規則 使用 SikaControl 時必須遵守 ® ^(®) { }^{\circledR} SRA 872 SA 混凝土。參照相關標準。
The standard rules of good concreting practice for production and placing must be observed when using SikaControl ^(®) SRA 872 SA in concrete. Refer to relevant standards.| The standard rules of good concreting practice for production and placing | | :--- | | must be observed when using SikaControl ${ }^{\circledR}$ SRA 872 SA in concrete. Refer | | to relevant standards. |
新鮮混凝土必須適當養護,特別是在高溫下 以防止塑性和乾燥收縮。使用西卡 ® ^(®) { }^{\circledR} 反溶膠 ® ^(®) { }^{\circledR} 產品作為固化劑或使用濕粗麻布。
Fresh concrete must be cured properly especially at high temperatures in order to prevent plastic and drying shrinkage. Use Sika ^(®) Antisol ^(®) products as a curing agent or apply wet hessian.| Fresh concrete must be cured properly especially at high temperatures in | | :--- | | order to prevent plastic and drying shrinkage. Use Sika ${ }^{\circledR}$ Antisol ${ }^{\circledR}$ products | | as a curing agent or apply wet hessian. |
  對設定的影響
SikaControl 的應用 ® ^(®) { }^{\circledR} SRA 872 SA 將導致混凝土凝固延遲,並且在寒冷的環境溫度下這種影響會增強。 結合 SikaControl ® ^(®) { }^{\circledR} SRA 872 SA 與緩凝劑一起使用時,必須考慮它們的綜合緩凝效果和凝固時間的延遲。
The application of SikaControl ^(®) SRA 872 SA will result in retarded setting of the concrete and in cold ambient temperatures this effect will be in- creased. When combining SikaControl ^(®) SRA 872 SA with retarding admixtures, their combined retardation effect and the delay in setting time has to be taken into account.| The application of SikaControl ${ }^{\circledR}$ SRA 872 SA will result in retarded setting of | | :--- | | the concrete and in cold ambient temperatures this effect will be in- | | creased. | | When combining SikaControl ${ }^{\circledR}$ SRA 872 SA with retarding admixtures, their | | combined retardation effect and the delay in setting time has to be taken | | into account. |
Concreting Guidance "The standard rules of good concreting practice for production and placing must be observed when using SikaControl ^(®) SRA 872 SA in concrete. Refer to relevant standards." "Fresh concrete must be cured properly especially at high temperatures in order to prevent plastic and drying shrinkage. Use Sika ^(®) Antisol ^(®) products as a curing agent or apply wet hessian." Effect on Setting "The application of SikaControl ^(®) SRA 872 SA will result in retarded setting of the concrete and in cold ambient temperatures this effect will be in- creased. When combining SikaControl ^(®) SRA 872 SA with retarding admixtures, their combined retardation effect and the delay in setting time has to be taken into account."| Concreting Guidance | The standard rules of good concreting practice for production and placing <br> must be observed when using SikaControl ${ }^{\circledR}$ SRA 872 SA in concrete. Refer <br> to relevant standards. | | :--- | :--- | | Fresh concrete must be cured properly especially at high temperatures in <br> order to prevent plastic and drying shrinkage. Use Sika ${ }^{\circledR}$ Antisol ${ }^{\circledR}$ products <br> as a curing agent or apply wet hessian. | | | Effect on Setting | The application of SikaControl ${ }^{\circledR}$ SRA 872 SA will result in retarded setting of <br> the concrete and in cold ambient temperatures this effect will be in- <br> creased. <br> When combining SikaControl ${ }^{\circledR}$ SRA 872 SA with retarding admixtures, their <br> combined retardation effect and the delay in setting time has to be taken <br> into account. |

  應用程式資訊

  建議劑量
1.0-4.0%重量的黏合劑根據所需的收縮減少程度,可能需要此範圍之外的劑量。 在添加 SikaControl 之前,需要了解擬使用的混凝土混合物的收縮特性 ® ^(®) { }^{\circledR} SRA 872 SA 外加劑。 SikaControl 的劑量 ® ^(®) { }^{\circledR} SRA 872 SA 混合物將取決於所需的乾燥收縮和所需的乾燥收縮的減少量。強烈建議進行乾燥收縮測試,以確定每種應用和每組材料的最佳劑量。
1.0-4.0% by weight of binder Dosages outside of this range may be required depending on the level of shrinkage reduction needed. Knowledge of the shrinkage characteristics of the concrete mixture proposed for use is required prior to the addition of SikaControl ^(®) SRA 872 SA admixture. The dosage of SikaControl ^(®) SRA 872 SA admixture will be dependent on the desired drying shrinkage and the reduction in drying shrinkage required. It is strongly recommended that drying shrinkage testing be performed to determine the optimum dosage for each application and each set of materials.| 1.0-4.0% by weight of binder | | :--- | | Dosages outside of this range may be required depending on the level of shrinkage reduction needed. | | Knowledge of the shrinkage characteristics of the concrete mixture proposed for use is required prior to the addition of SikaControl ${ }^{\circledR}$ SRA 872 SA admixture. The dosage of SikaControl ${ }^{\circledR}$ SRA 872 SA admixture will be dependent on the desired drying shrinkage and the reduction in drying shrinkage required. | | It is strongly recommended that drying shrinkage testing be performed to determine the optimum dosage for each application and each set of materials. |
  分配
西卡控制 ® ^(®) { }^{\circledR} 可以在初始批次序列期間或在施工現場將 SRA 872 SA 外加劑添加到混凝土混合物中。 應減少混合水含量,以考慮到 SikaControl 的數量 ® ^(®) { }^{\circledR} 使用 SRA 872 SA 外加劑。
SikaControl ^(®) SRA 872 SA admixture may be added to the concrete mixture during the initial batch sequence or at the jobsite. The mix water content should be reduced to account for the quantity of SikaControl ^(®) SRA 872 SA admixture used.| SikaControl ${ }^{\circledR}$ SRA 872 SA admixture may be added to the concrete mixture during the initial batch sequence or at the jobsite. | | :--- | | The mix water content should be reduced to account for the quantity of SikaControl ${ }^{\circledR}$ SRA 872 SA admixture used. |
  相容性
西卡控制 ^(牛) { }^{\otimes} SRA 872 SA 可與所有類型的波特蘭水泥、含有火山灰質材料的混凝土結合使用,例如:GGBS(磨細粒化高爐礦渣)、粉煤灰(PFA)、微矽粉(矽灰)以及以下西卡產品系列/外加劑: 梅花鹿 ® ^(®) { }^{\circledR} 塑化劑:西卡 ® ^(®) { }^{\circledR} 維斯科克里特 ^(o+) { }^{\oplus} , 西卡塑料 ® ^(®) ^{\circledR} ,西卡門特 ^(o+) { }^{\oplus} ,塑膠 ^(o+) { }^{\oplus} 西卡纖維 ® ^(®) { }^{\circledR} 、梅花鹿 ® ^(®) { }^{\circledR} Aer,西卡泵 ® ^(®) { }^{\circledR} 、梅花鹿 ® ^(®) { }^{\circledR} FerroGard ® ^(®) { }^{\circledR} 、梅花鹿 ® ^(®) { }^{\circledR} 控制。我們建議進行試驗混合,以確定結合 SikaControl 時所需的性能 ® ^(®) { }^{\circledR} SRA 872 SA 與上述或其他混合物。請諮詢我們的西卡技術部門。
SikaControl ^(ox) SRA 872 SA may be combined with all types of Portland cement, concretes containing pozzolanic materials such as: GGBS (Ground Granulated Blast Furnace Slag), Fly Ash (PFA) , Micro Silica (Silica Fume) and the following Sika product ranges / admixtures: Sika ^(®) Plasticisers: Sika ^(®) ViscoCrete ^(o+), SikaPlast ^(®), Sikament ^(o+), Plastiment ^(o+) SikaFiber ^(®), Sika ^(®) Aer, SikaPump ^(®), Sika ^(®) FerroGard ^(®), Sika ^(®) Control. We recommend to perform trial mixes to establish the required performance when combining SikaControl ^(®) SRA 872 SA with the above or other admixtures. Please consult our Sika Technical Department.| SikaControl ${ }^{\otimes}$ SRA 872 SA may be combined with all types of Portland cement, concretes containing pozzolanic materials such as: GGBS (Ground Granulated Blast Furnace Slag), Fly Ash (PFA) , Micro Silica (Silica Fume) and the following Sika product ranges / admixtures: | | :--- | | Sika ${ }^{\circledR}$ Plasticisers: Sika ${ }^{\circledR}$ ViscoCrete ${ }^{\oplus}$, SikaPlast $^{\circledR}$, Sikament ${ }^{\oplus}$, Plastiment ${ }^{\oplus}$ SikaFiber ${ }^{\circledR}$, Sika ${ }^{\circledR}$ Aer, SikaPump ${ }^{\circledR}$, Sika ${ }^{\circledR}$ FerroGard ${ }^{\circledR}$, Sika ${ }^{\circledR}$ Control. We recommend to perform trial mixes to establish the required performance when combining SikaControl ${ }^{\circledR}$ SRA 872 SA with the above or other admixtures. | | Please consult our Sika Technical Department. |
Recommended Dosage "1.0-4.0% by weight of binder Dosages outside of this range may be required depending on the level of shrinkage reduction needed. Knowledge of the shrinkage characteristics of the concrete mixture proposed for use is required prior to the addition of SikaControl ^(®) SRA 872 SA admixture. The dosage of SikaControl ^(®) SRA 872 SA admixture will be dependent on the desired drying shrinkage and the reduction in drying shrinkage required. It is strongly recommended that drying shrinkage testing be performed to determine the optimum dosage for each application and each set of materials." Dispensing "SikaControl ^(®) SRA 872 SA admixture may be added to the concrete mixture during the initial batch sequence or at the jobsite. The mix water content should be reduced to account for the quantity of SikaControl ^(®) SRA 872 SA admixture used." Compatibility "SikaControl ^(ox) SRA 872 SA may be combined with all types of Portland cement, concretes containing pozzolanic materials such as: GGBS (Ground Granulated Blast Furnace Slag), Fly Ash (PFA) , Micro Silica (Silica Fume) and the following Sika product ranges / admixtures: Sika ^(®) Plasticisers: Sika ^(®) ViscoCrete ^(o+), SikaPlast ^(®), Sikament ^(o+), Plastiment ^(o+) SikaFiber ^(®), Sika ^(®) Aer, SikaPump ^(®), Sika ^(®) FerroGard ^(®), Sika ^(®) Control. We recommend to perform trial mixes to establish the required performance when combining SikaControl ^(®) SRA 872 SA with the above or other admixtures. Please consult our Sika Technical Department."| Recommended Dosage | 1.0-4.0% by weight of binder <br> Dosages outside of this range may be required depending on the level of shrinkage reduction needed. <br> Knowledge of the shrinkage characteristics of the concrete mixture proposed for use is required prior to the addition of SikaControl ${ }^{\circledR}$ SRA 872 SA admixture. The dosage of SikaControl ${ }^{\circledR}$ SRA 872 SA admixture will be dependent on the desired drying shrinkage and the reduction in drying shrinkage required. <br> It is strongly recommended that drying shrinkage testing be performed to determine the optimum dosage for each application and each set of materials. | | :---: | :---: | | Dispensing | SikaControl ${ }^{\circledR}$ SRA 872 SA admixture may be added to the concrete mixture during the initial batch sequence or at the jobsite. <br> The mix water content should be reduced to account for the quantity of SikaControl ${ }^{\circledR}$ SRA 872 SA admixture used. | | Compatibility | SikaControl ${ }^{\otimes}$ SRA 872 SA may be combined with all types of Portland cement, concretes containing pozzolanic materials such as: GGBS (Ground Granulated Blast Furnace Slag), Fly Ash (PFA) , Micro Silica (Silica Fume) and the following Sika product ranges / admixtures: <br> Sika ${ }^{\circledR}$ Plasticisers: Sika ${ }^{\circledR}$ ViscoCrete ${ }^{\oplus}$, SikaPlast $^{\circledR}$, Sikament ${ }^{\oplus}$, Plastiment ${ }^{\oplus}$ SikaFiber ${ }^{\circledR}$, Sika ${ }^{\circledR}$ Aer, SikaPump ${ }^{\circledR}$, Sika ${ }^{\circledR}$ FerroGard ${ }^{\circledR}$, Sika ${ }^{\circledR}$ Control. We recommend to perform trial mixes to establish the required performance when combining SikaControl ${ }^{\circledR}$ SRA 872 SA with the above or other admixtures. <br> Please consult our Sika Technical Department. |

  產品資料表

西卡控制 ^(∙){ }^{\bullet} SRA 872 SA
2024 年 10 月,版本 01.01
021403041000000072

  產品數據基礎

  • 本產品資料表中所述的所有技術資料均基於實驗室測試。由於我們無法控制的情況,實際測量數據可能會有所不同。
  • 內部參考 - 版本:MBS_CC-UAE/ MLife_SRA872SA_03_17/v1/

  用途

使用 SikaControl ® ® ^(®){ }^{\circledR} SRA 872 SA 時,必須根據所使用的當地材料來源選擇混合設計,並進行試混合以驗證適用性。如果產品冷凍和/或出現沉澱,可在室溫下緩慢解凍並充分混合後使用 SikaControl ® ® ^(®){ }^{\circledR} SRA 872 SA。
SikaControl ® ® ^(®){ }^{\circledR} SRA 872 SA 不得添加到乾水泥中。
實際收縮減少量也取決於混凝土混合料設計和混凝土的其他成分。
SikaControl ® ® ^(®){ }^{\circledR} SRA 872 SA 將減少乾燥收縮。它不會消除開裂。減少裂縫主要取決於良好的工程設計,透過精心設計和適當分配的收縮控制接頭來允許混凝土收縮。
使用前必須進行適用性測試。

生態、健康與安全

有關化學產品安全處理、儲存和處置的資訊和建議,使用者應參考最新的材料安全資料表 (MSDS),其中包含物理、生態、毒理學和其他安全相關資料。

  當地限制

請注意,由於特定的當地法規,該產品的性能可能因國家/地區而異。有關應用領域的準確描述,請查閱當地的產品資料表。
這些信息,特別是與西卡產品的應用和最終用途相關的建議,是基於西卡目前對產品的知識和經驗,在正常條件下按照西卡的建議正確儲存、處理和使用的情況下真誠提供的。實際上,由於材料、基材和實際現場條件的差異,因此不能從該資訊、任何書面建議或任何其他提供的建議中推斷出對適銷性或特定用途適用性的保證,也不能推斷出因任何法律關係而產生的任何責任。產品使用者必須測試產品是否適合預期的應用和目的。西卡保留改變其產品屬性的權利。必須尊重第三方的所有權。所有訂單均須遵守我們現行的銷售和交付條款。使用者必須始終參考有關產品的當地產品資料表的最新版本,該版本將根據要求提供副本。可能需要根據當地的具體法律法規調整上述免責聲明。本免責聲明的任何更改必須獲得巴爾的 Sika ® ® ^(®){ }^{\circledR} 公司法務部的許可才能實施。
  西卡香港有限公司
新貿易廣場 A 座 1507-12 室
香港新界沙田安平街6號
  電話: +852 26868108
  傳真:+852 26453671
信箱: marketing@hk.sika.com
網址: www.sika.com.hk