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邵曉芬¹  ,  章保勝¹  ,  黃海濱² ,  馬書山² ,  張基勇² ,  曾志勇³

( 1 .  浙江城市空間建筑規(guī)劃設(shè)計院有限公司 ，浙江 麗水 323000 ;  2.  浙江研翔新材料有限公司，

浙江 臺州 318000 ;  3 .  臺州學(xué)院 ，浙江 臺州 318000)

摘   要 ：隨著建筑行業(yè)的快速發(fā)展 ，地下現(xiàn)澆混凝土工程大量出現(xiàn) ，而混凝土開裂問題成為了地下工程的 一大頑疾。為了降低混凝土開裂對地下工程造成的危害 ，采用降低水化熱和增強抗裂性能的自密實抑溫防水復(fù) 合材料作為混凝土抗裂材料 ，研究自密實抑溫防水復(fù)合材料對水泥凈漿抑溫率和混凝土應(yīng)力 、抗壓強度性能的影響。結(jié)果表明： 自密實抑溫防水復(fù)合材料的摻入 ，使得水泥凈漿抑溫率達(dá)到 40. 7% ,  地下室側(cè)墻中部和下部 的應(yīng)變分別降低了 30. 2% 、13 .7% ,  同時對混凝土抗壓強度無負(fù)面影響 ，有效減少了混凝土的開裂 ，提高了地 下工程的質(zhì)量。

關(guān)鍵詞： 自密實 ；防水 ；水化熱抑制劑 ；溫度收縮 ；復(fù)合材料

中圖分類號：TU57 + 5            

文獻(xiàn)標(biāo)志碼：A           

文章編號： 1005- 8249   (2024)  04- 0027- 04

 DOI:10. 19860/j.cnki.issn1005 - 8249.2024.04.005

 

SHAO Xiaofen¹  ,  ZHANG Baosheng¹  ,  HUANG Haibin² ,  MA Shushan² ,  ZHANG Jiyong² ,  ZENG Zhiyong³

( 1 . Zhejiang Urban Space Architecture Planning and Design Institute Co. ，Ltd. ，Lishui 323000 ,  China;

2. Zhejiang Yanxiang New Material Co. ，Ltd. ，Taizhou 318000 ,  China;  3. Taizhou  College ,   Taizhou 318000 ,  China)

 

Abstract:With the rapid development of the construction industry, a large number of underground cast-in-place concrete projects have appeared, and the problem of concrete cracking has become a major problem in underground projects. In order to reduce the harm caused by concrete cracking on underground projects, the self-compacting temperature-suppressing and waterproofing composite materials that reduce the heat of hydration and enhance the crack-resistant properties are used as the anti-cracking materials for concrete, and the effect of self-compacting temperature-suppressing and waterproofing composite materials on the temperature-suppressing rate of the cement slurry and the performance of the stress and compressive strength of the concrete are investigated. The results show that: the incorporation of self-compacting temperature-suppression composite material makes the temperature-suppression rate of cement mortar reach 40.7%, and the strains in the middle and the lower part of the basement sidewalls are reduced by 30.2% and 13.7%, respectively, and at the same time, there is no negative impact on the compressive strength of concrete, which reduces the cracking of concrete and improves the quality of the underground project.

Keywords:self-compacting; watertight; hydrothermal inhibitors; temperature contraction; composite material

*基金項目：浙江省重點研發(fā)計劃項目  (2021 C03160) ;  臺州市科技計劃項目  (2001 gy11 ) 。

作者簡介：邵曉芬  (1976—) ,  女 ，本科 ，高級工程師 ，一級注冊建筑師 ，注冊規(guī)劃師 ，研究方向：建筑工程設(shè)計。

 收稿日期：2023- 03- 02