A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DURABILITY IMPROVER FOR CONCRETE, AND CONCRETE
PROBLEM TO BE SOLVED: To provide a durability improver or the like for concrete, capable of preventing the decrease of freeze-thaw resistance of concrete and especially the deterioration of the surface of concrete (cracks and peeling), and highly effective in decreasing shrinkage of concrete, even if an expanding agent is contained therein.SOLUTION: The durability improver for concrete according to the present invention at least comprises an expanding agent, paraffin, and a nitrite. It is preferable that the expanding agent is powder, the nitrite is an aqueous nitrite solution, and the paraffin is an aqueous dispersion of solid paraffin dispersed in water. The concrete according to the present invention comprises the durability improver for concrete.SELECTED DRAWING: Figure 1
【課題】本発明は、膨張材を含んでいても、コンクリートの凍結融解抵抗性の低下、特に表面の劣化（ひび割れや剥離）を抑制でき、かつ収縮低減効果の高いコンクリート用耐久性改善剤等を提供する。【解決手段】本発明のコンクリート用耐久性改善剤は、少なくとも、膨張材、パラフィン、および亜硝酸塩からなるものであり、好ましくは、前記膨張材は粉体であり、前記亜硝酸塩は水溶液であり、前記パラフィンは水に分散した固形パラフィンの分散液である。また、本発明のコンクリートは、前記コンクリート用耐久性改善剤を含むものである。【選択図】図１
DURABILITY IMPROVER FOR CONCRETE, AND CONCRETE
PROBLEM TO BE SOLVED: To provide a durability improver or the like for concrete, capable of preventing the decrease of freeze-thaw resistance of concrete and especially the deterioration of the surface of concrete (cracks and peeling), and highly effective in decreasing shrinkage of concrete, even if an expanding agent is contained therein.SOLUTION: The durability improver for concrete according to the present invention at least comprises an expanding agent, paraffin, and a nitrite. It is preferable that the expanding agent is powder, the nitrite is an aqueous nitrite solution, and the paraffin is an aqueous dispersion of solid paraffin dispersed in water. The concrete according to the present invention comprises the durability improver for concrete.SELECTED DRAWING: Figure 1
【課題】本発明は、膨張材を含んでいても、コンクリートの凍結融解抵抗性の低下、特に表面の劣化（ひび割れや剥離）を抑制でき、かつ収縮低減効果の高いコンクリート用耐久性改善剤等を提供する。【解決手段】本発明のコンクリート用耐久性改善剤は、少なくとも、膨張材、パラフィン、および亜硝酸塩からなるものであり、好ましくは、前記膨張材は粉体であり、前記亜硝酸塩は水溶液であり、前記パラフィンは水に分散した固形パラフィンの分散液である。また、本発明のコンクリートは、前記コンクリート用耐久性改善剤を含むものである。【選択図】図１
DURABILITY IMPROVER FOR CONCRETE, AND CONCRETE
コンクリート用耐久性改善剤、およびコンクリート
HYODO HIKOTSUGU (author) / HIGUCHI TAKAYASU (author)
2018-10-18
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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