120h ultra-slow setting waste-based sprayed concrete and preparation process thereof
The invention discloses 120-hour super-slow setting waste-based sprayed concrete and a preparation process thereof, and the 120-hour super-slow setting waste-based sprayed concrete is prepared from the following raw materials by taking cement as a standard: 100% of cement, 400% of earth and stone wa...
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| creator | HE HONGWEI ZHANG QI CHENG ECONOMIC CHEN FENGBIN LI MINGYANG LIU JIGUANG NIU HAOSHUANG CHEN XI SHEN HONGDONG YANG LIUHUA ZHANG XIAOWEI WANG JINXING YANG YIXUAN LIAN XUEWEN JIAO HUAZHE CHEN XINMING |
| description | The invention discloses 120-hour super-slow setting waste-based sprayed concrete and a preparation process thereof, and the 120-hour super-slow setting waste-based sprayed concrete is prepared from the following raw materials by taking cement as a standard: 100% of cement, 400% of earth and stone waste, 15%-30% of fly ash, 42-49% of mixing water, 2%-4% of a compound retarder, 5%-8% of an accelerator, 0.015%-0.025% of an air entraining agent, 1.5%-2.5% of an early strength agent and 0.075%-0.125% of a defoaming agent. The compound retarder is prepared by compounding a polycarboxylic acid water-reducing mother solution, a polycarboxylic acid slump retaining mother solution, sodium tripolyphosphate, sodium gluconate and water according to a certain proportion, and the compound retarder simultaneously contains inorganic matters and organic matters, so that the hydration of cement is jointly prevented, and the effect is remarkable. The premixed wet material has enough delayed coagulation time, and the sprayed conc |
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The compound retarder is prepared by compounding a polycarboxylic acid water-reducing mother solution, a polycarboxylic acid slump retaining mother solution, sodium tripolyphosphate, sodium gluconate and water according to a certain proportion, and the compound retarder simultaneously contains inorganic matters and organic matters, so that the hydration of cement is jointly prevented, and the effect is remarkable. The premixed wet material has enough delayed coagulation time, and the sprayed conc</description><language>chi ; eng</language><subject>ARTIFICIAL STONE ; CEMENTS ; CERAMICS ; CHEMISTRY ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; CONCRETE ; EARTH DRILLING ; FIXED CONSTRUCTIONS ; GALLERIES ; LARGE UNDERGROUND CHAMBERS ; LIME, MAGNESIA ; METALLURGY ; MINING ; PERFORMING OPERATIONS ; PREPARING CLAY ; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER ; REFRACTORIES ; SHAFTS ; SLAG ; TRANSPORTING ; TREATMENT OF NATURAL STONE ; TUNNELS ; WORKING CEMENT, CLAY, OR STONE</subject><creationdate>2023</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=20230704&DB=EPODOC&CC=CN&NR=116375400A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20230704&DB=EPODOC&CC=CN&NR=116375400A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HE HONGWEI</creatorcontrib><creatorcontrib>ZHANG QI</creatorcontrib><creatorcontrib>CHENG ECONOMIC</creatorcontrib><creatorcontrib>CHEN FENGBIN</creatorcontrib><creatorcontrib>LI MINGYANG</creatorcontrib><creatorcontrib>LIU JIGUANG</creatorcontrib><creatorcontrib>NIU HAOSHUANG</creatorcontrib><creatorcontrib>CHEN XI</creatorcontrib><creatorcontrib>SHEN HONGDONG</creatorcontrib><creatorcontrib>YANG LIUHUA</creatorcontrib><creatorcontrib>ZHANG XIAOWEI</creatorcontrib><creatorcontrib>WANG JINXING</creatorcontrib><creatorcontrib>YANG YIXUAN</creatorcontrib><creatorcontrib>LIAN XUEWEN</creatorcontrib><creatorcontrib>JIAO HUAZHE</creatorcontrib><creatorcontrib>CHEN XINMING</creatorcontrib><title>120h ultra-slow setting waste-based sprayed concrete and preparation process thereof</title><description>The invention discloses 120-hour super-slow setting waste-based sprayed concrete and a preparation process thereof, and the 120-hour super-slow setting waste-based sprayed concrete is prepared from the following raw materials by taking cement as a standard: 100% of cement, 400% of earth and stone waste, 15%-30% of fly ash, 42-49% of mixing water, 2%-4% of a compound retarder, 5%-8% of an accelerator, 0.015%-0.025% of an air entraining agent, 1.5%-2.5% of an early strength agent and 0.075%-0.125% of a defoaming agent. The compound retarder is prepared by compounding a polycarboxylic acid water-reducing mother solution, a polycarboxylic acid slump retaining mother solution, sodium tripolyphosphate, sodium gluconate and water according to a certain proportion, and the compound retarder simultaneously contains inorganic matters and organic matters, so that the hydration of cement is jointly prevented, and the effect is remarkable. 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The compound retarder is prepared by compounding a polycarboxylic acid water-reducing mother solution, a polycarboxylic acid slump retaining mother solution, sodium tripolyphosphate, sodium gluconate and water according to a certain proportion, and the compound retarder simultaneously contains inorganic matters and organic matters, so that the hydration of cement is jointly prevented, and the effect is remarkable. The premixed wet material has enough delayed coagulation time, and the sprayed conc</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS LIME, MAGNESIA METALLURGY MINING PERFORMING OPERATIONS PREPARING CLAY PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER REFRACTORIES SHAFTS SLAG TRANSPORTING TREATMENT OF NATURAL STONE TUNNELS WORKING CEMENT, CLAY, OR STONE |
| title | 120h ultra-slow setting waste-based sprayed concrete and preparation process thereof |
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