Preparation method for high-strength self-compacting concrete with recycled fine aggregate
The invention discloses a preparation method for high-strength self-compacting concrete with recycled fine aggregate. The preparation method comprises the following steps: mixing recycled fine aggregate with required saturated water, stirring the mixture to be uniform, adding and mixing cement, a mi...
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| creator | LUO ZUOQIU WANG NING WANG XIN'GE YAO YUAN ZHAO SHIRAN MENG GANG DENG TIANMING LI YIFEI OUYANG MENGXUE ZHANG KAIFENG |
| description | The invention discloses a preparation method for high-strength self-compacting concrete with recycled fine aggregate. The preparation method comprises the following steps: mixing recycled fine aggregate with required saturated water, stirring the mixture to be uniform, adding and mixing cement, a mineral admixture, natural aggregate, 50-70 % of mixing water and a polycarboxylate superplasticizer, stirring the mixture to be uniform, and finally adding the remaining mixing water to the mixture to be mixed uniformly. According to the preparation method, the problem that the concrete slump loss is large, which is caused by the fact that recycled fine aggregate has the characteristics of higher water absorption, poor strength, irregular shape and the like, is solved, and almost no loss is caused within 2 h, so that the preparation method has wide applicability, and the problem that new mixed concrete is poor in working performance and the like in the actual construction process can be solved. The ratio and the production technology process of the high-strength self-compacting concrete with recycled fine aggregate are optimized; by changing the ratio of mineral admixture and the stirring manners as well as optimizing a recycled fine aggregate demand water saturation process and a mixing water adding process, the new mixed concrete can be excellent in working performance, the slump loss is obviously reduced, the pumpability is excellent and the construction is facilitated. |
| format | Patent |
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The preparation method comprises the following steps: mixing recycled fine aggregate with required saturated water, stirring the mixture to be uniform, adding and mixing cement, a mineral admixture, natural aggregate, 50-70 % of mixing water and a polycarboxylate superplasticizer, stirring the mixture to be uniform, and finally adding the remaining mixing water to the mixture to be mixed uniformly. According to the preparation method, the problem that the concrete slump loss is large, which is caused by the fact that recycled fine aggregate has the characteristics of higher water absorption, poor strength, irregular shape and the like, is solved, and almost no loss is caused within 2 h, so that the preparation method has wide applicability, and the problem that new mixed concrete is poor in working performance and the like in the actual construction process can be solved. The ratio and the production technology process of the high-strength self-compacting concrete with recycled fine aggregate are optimized; by changing the ratio of mineral admixture and the stirring manners as well as optimizing a recycled fine aggregate demand water saturation process and a mixing water adding process, the new mixed concrete can be excellent in working performance, the slump loss is obviously reduced, the pumpability is excellent and the construction is facilitated.</description><language>eng</language><subject>ARTIFICIAL STONE ; CEMENTS ; CERAMICS ; CHEMISTRY ; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; CONCRETE ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; LIME, MAGNESIA ; METALLURGY ; REFRACTORIES ; SLAG ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE ; TREATMENT OF NATURAL STONE</subject><creationdate>2015</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150930&DB=EPODOC&CC=CN&NR=104944863A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150930&DB=EPODOC&CC=CN&NR=104944863A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LUO ZUOQIU</creatorcontrib><creatorcontrib>WANG NING</creatorcontrib><creatorcontrib>WANG XIN'GE</creatorcontrib><creatorcontrib>YAO YUAN</creatorcontrib><creatorcontrib>ZHAO SHIRAN</creatorcontrib><creatorcontrib>MENG GANG</creatorcontrib><creatorcontrib>DENG TIANMING</creatorcontrib><creatorcontrib>LI YIFEI</creatorcontrib><creatorcontrib>OUYANG MENGXUE</creatorcontrib><creatorcontrib>ZHANG KAIFENG</creatorcontrib><title>Preparation method for high-strength self-compacting concrete with recycled fine aggregate</title><description>The invention discloses a preparation method for high-strength self-compacting concrete with recycled fine aggregate. The preparation method comprises the following steps: mixing recycled fine aggregate with required saturated water, stirring the mixture to be uniform, adding and mixing cement, a mineral admixture, natural aggregate, 50-70 % of mixing water and a polycarboxylate superplasticizer, stirring the mixture to be uniform, and finally adding the remaining mixing water to the mixture to be mixed uniformly. According to the preparation method, the problem that the concrete slump loss is large, which is caused by the fact that recycled fine aggregate has the characteristics of higher water absorption, poor strength, irregular shape and the like, is solved, and almost no loss is caused within 2 h, so that the preparation method has wide applicability, and the problem that new mixed concrete is poor in working performance and the like in the actual construction process can be solved. The ratio and the production technology process of the high-strength self-compacting concrete with recycled fine aggregate are optimized; by changing the ratio of mineral admixture and the stirring manners as well as optimizing a recycled fine aggregate demand water saturation process and a mixing water adding process, the new mixed concrete can be excellent in working performance, the slump loss is obviously reduced, the pumpability is excellent and the construction is facilitated.</description><subject>ARTIFICIAL STONE</subject><subject>CEMENTS</subject><subject>CERAMICS</subject><subject>CHEMISTRY</subject><subject>CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT</subject><subject>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</subject><subject>CONCRETE</subject><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</subject><subject>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</subject><subject>LIME, MAGNESIA</subject><subject>METALLURGY</subject><subject>REFRACTORIES</subject><subject>SLAG</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><subject>TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</subject><subject>TREATMENT OF NATURAL STONE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2015</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjLEKwjAURbM4iPoPzw8oKA1iRymKkzg4uZQQb5NA-1JeHoh_bwc_wOkO55y7NM-7YHLiNGWmERrzi_osFFOIVVEBB41UMPSVz-PkvCYO5DN7gYLeaaYC__ED5jAxyIUgCE6xNoveDQWb367M9nJ-tNcKU-5Q5i8wtGtv-51trD0e6lP9j_MFcD47lw</recordid><startdate>20150930</startdate><enddate>20150930</enddate><creator>LUO ZUOQIU</creator><creator>WANG NING</creator><creator>WANG XIN'GE</creator><creator>YAO YUAN</creator><creator>ZHAO SHIRAN</creator><creator>MENG GANG</creator><creator>DENG TIANMING</creator><creator>LI YIFEI</creator><creator>OUYANG MENGXUE</creator><creator>ZHANG KAIFENG</creator><scope>EVB</scope></search><sort><creationdate>20150930</creationdate><title>Preparation method for high-strength self-compacting concrete with recycled fine aggregate</title><author>LUO ZUOQIU ; WANG NING ; WANG XIN'GE ; YAO YUAN ; ZHAO SHIRAN ; MENG GANG ; DENG TIANMING ; LI YIFEI ; OUYANG MENGXUE ; ZHANG KAIFENG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN104944863A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2015</creationdate><topic>ARTIFICIAL STONE</topic><topic>CEMENTS</topic><topic>CERAMICS</topic><topic>CHEMISTRY</topic><topic>CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT</topic><topic>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</topic><topic>CONCRETE</topic><topic>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</topic><topic>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</topic><topic>LIME, MAGNESIA</topic><topic>METALLURGY</topic><topic>REFRACTORIES</topic><topic>SLAG</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</topic><topic>TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</topic><topic>TREATMENT OF NATURAL STONE</topic><toplevel>online_resources</toplevel><creatorcontrib>LUO ZUOQIU</creatorcontrib><creatorcontrib>WANG NING</creatorcontrib><creatorcontrib>WANG XIN'GE</creatorcontrib><creatorcontrib>YAO YUAN</creatorcontrib><creatorcontrib>ZHAO SHIRAN</creatorcontrib><creatorcontrib>MENG GANG</creatorcontrib><creatorcontrib>DENG TIANMING</creatorcontrib><creatorcontrib>LI YIFEI</creatorcontrib><creatorcontrib>OUYANG MENGXUE</creatorcontrib><creatorcontrib>ZHANG KAIFENG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LUO ZUOQIU</au><au>WANG NING</au><au>WANG XIN'GE</au><au>YAO YUAN</au><au>ZHAO SHIRAN</au><au>MENG GANG</au><au>DENG TIANMING</au><au>LI YIFEI</au><au>OUYANG MENGXUE</au><au>ZHANG KAIFENG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Preparation method for high-strength self-compacting concrete with recycled fine aggregate</title><date>2015-09-30</date><risdate>2015</risdate><abstract>The invention discloses a preparation method for high-strength self-compacting concrete with recycled fine aggregate. The preparation method comprises the following steps: mixing recycled fine aggregate with required saturated water, stirring the mixture to be uniform, adding and mixing cement, a mineral admixture, natural aggregate, 50-70 % of mixing water and a polycarboxylate superplasticizer, stirring the mixture to be uniform, and finally adding the remaining mixing water to the mixture to be mixed uniformly. According to the preparation method, the problem that the concrete slump loss is large, which is caused by the fact that recycled fine aggregate has the characteristics of higher water absorption, poor strength, irregular shape and the like, is solved, and almost no loss is caused within 2 h, so that the preparation method has wide applicability, and the problem that new mixed concrete is poor in working performance and the like in the actual construction process can be solved. The ratio and the production technology process of the high-strength self-compacting concrete with recycled fine aggregate are optimized; by changing the ratio of mineral admixture and the stirring manners as well as optimizing a recycled fine aggregate demand water saturation process and a mixing water adding process, the new mixed concrete can be excellent in working performance, the slump loss is obviously reduced, the pumpability is excellent and the construction is facilitated.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF NATURAL STONE |
| title | Preparation method for high-strength self-compacting concrete with recycled fine aggregate |
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