Weed Control in Joints of Concrete Block and Other Paving Stone
The present invention drastically reduces the necessary weed control work by making joint filling sand a hostile substrate for plant and fungus growth by using an environmentally acceptable slow release mineral additive. The additive, having similar grain size distribution, mechanical and rheologica...
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| creator | BECK POUL K HVORSLEV STEFFEN B SONDERBERG FREDERIKSEN JENS |
| description | The present invention drastically reduces the necessary weed control work by making joint filling sand a hostile substrate for plant and fungus growth by using an environmentally acceptable slow release mineral additive. The additive, having similar grain size distribution, mechanical and rheological properties, forms an integral part of the joint filling sand. The specific gravity of the additive is lower than quartz sand imparting a tendency for the additive to migrate towards the top part of the joint. The additive leads to pore waters rich in sodium and at high pH, both qualities being maintained over long periods. The mixture of additive and sand is handled and applied using conventional laying techniques and equipment, observing usual precautions for mortar or cement mixes with sand. In the environment, reaction with CO2 in the air or in the soil porosity inactivates the causticity, yielding harmless carbonate sales. |
| format | Patent |
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The additive, having similar grain size distribution, mechanical and rheological properties, forms an integral part of the joint filling sand. The specific gravity of the additive is lower than quartz sand imparting a tendency for the additive to migrate towards the top part of the joint. The additive leads to pore waters rich in sodium and at high pH, both qualities being maintained over long periods. The mixture of additive and sand is handled and applied using conventional laying techniques and equipment, observing usual precautions for mortar or cement mixes with sand. In the environment, reaction with CO2 in the air or in the soil porosity inactivates the causticity, yielding harmless carbonate sales.</description><language>eng</language><subject>AGRICULTURE ; ANIMAL HUSBANDRY ; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES ; CLEANING BEACHES ; CLEANING OF PERMANENT WAYS ; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES ; CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE ; DISPERSING ; FISHING ; FIXED CONSTRUCTIONS ; FOG IN GENERAL ; FORESTRY ; HUMAN NECESSITIES ; HUNTING ; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR ; PEST REPELLANTS OR ATTRACTANTS ; PLANT GROWTH REGULATORS ; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF ; STREET CLEANING ; TRAPPING</subject><creationdate>2007</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=20071129&DB=EPODOC&CC=US&NR=2007275857A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20071129&DB=EPODOC&CC=US&NR=2007275857A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BECK POUL K</creatorcontrib><creatorcontrib>HVORSLEV STEFFEN B</creatorcontrib><creatorcontrib>SONDERBERG FREDERIKSEN JENS</creatorcontrib><title>Weed Control in Joints of Concrete Block and Other Paving Stone</title><description>The present invention drastically reduces the necessary weed control work by making joint filling sand a hostile substrate for plant and fungus growth by using an environmentally acceptable slow release mineral additive. The additive, having similar grain size distribution, mechanical and rheological properties, forms an integral part of the joint filling sand. The specific gravity of the additive is lower than quartz sand imparting a tendency for the additive to migrate towards the top part of the joint. The additive leads to pore waters rich in sodium and at high pH, both qualities being maintained over long periods. The mixture of additive and sand is handled and applied using conventional laying techniques and equipment, observing usual precautions for mortar or cement mixes with sand. In the environment, reaction with CO2 in the air or in the soil porosity inactivates the causticity, yielding harmless carbonate sales.</description><subject>AGRICULTURE</subject><subject>ANIMAL HUSBANDRY</subject><subject>BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES</subject><subject>CLEANING BEACHES</subject><subject>CLEANING OF PERMANENT WAYS</subject><subject>CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES</subject><subject>CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE</subject><subject>DISPERSING</subject><subject>FISHING</subject><subject>FIXED CONSTRUCTIONS</subject><subject>FOG IN GENERAL</subject><subject>FORESTRY</subject><subject>HUMAN NECESSITIES</subject><subject>HUNTING</subject><subject>MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR</subject><subject>PEST REPELLANTS OR ATTRACTANTS</subject><subject>PLANT GROWTH REGULATORS</subject><subject>PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF</subject><subject>STREET CLEANING</subject><subject>TRAPPING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2007</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLAPT01NUXDOzyspys9RyMxT8MrPzCspVshPAwkmF6WWpCo45eQnZysk5qUo-JdkpBYpBCSWZealKwSX5Oel8jCwpiXmFKfyQmluBmU31xBnD93Ugvz41OKCxOTUvNSS-NBgIwMDcyNzUwtTc0dDY-JUAQC-dzC6</recordid><startdate>20071129</startdate><enddate>20071129</enddate><creator>BECK POUL K</creator><creator>HVORSLEV STEFFEN B</creator><creator>SONDERBERG FREDERIKSEN JENS</creator><scope>EVB</scope></search><sort><creationdate>20071129</creationdate><title>Weed Control in Joints of Concrete Block and Other Paving Stone</title><author>BECK POUL K ; HVORSLEV STEFFEN B ; SONDERBERG FREDERIKSEN JENS</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2007275857A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2007</creationdate><topic>AGRICULTURE</topic><topic>ANIMAL HUSBANDRY</topic><topic>BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES</topic><topic>CLEANING BEACHES</topic><topic>CLEANING OF PERMANENT WAYS</topic><topic>CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES</topic><topic>CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE</topic><topic>DISPERSING</topic><topic>FISHING</topic><topic>FIXED CONSTRUCTIONS</topic><topic>FOG IN GENERAL</topic><topic>FORESTRY</topic><topic>HUMAN NECESSITIES</topic><topic>HUNTING</topic><topic>MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR</topic><topic>PEST REPELLANTS OR ATTRACTANTS</topic><topic>PLANT GROWTH REGULATORS</topic><topic>PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF</topic><topic>STREET CLEANING</topic><topic>TRAPPING</topic><toplevel>online_resources</toplevel><creatorcontrib>BECK POUL K</creatorcontrib><creatorcontrib>HVORSLEV STEFFEN B</creatorcontrib><creatorcontrib>SONDERBERG FREDERIKSEN JENS</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BECK POUL K</au><au>HVORSLEV STEFFEN B</au><au>SONDERBERG FREDERIKSEN JENS</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Weed Control in Joints of Concrete Block and Other Paving Stone</title><date>2007-11-29</date><risdate>2007</risdate><abstract>The present invention drastically reduces the necessary weed control work by making joint filling sand a hostile substrate for plant and fungus growth by using an environmentally acceptable slow release mineral additive. The additive, having similar grain size distribution, mechanical and rheological properties, forms an integral part of the joint filling sand. The specific gravity of the additive is lower than quartz sand imparting a tendency for the additive to migrate towards the top part of the joint. The additive leads to pore waters rich in sodium and at high pH, both qualities being maintained over long periods. The mixture of additive and sand is handled and applied using conventional laying techniques and equipment, observing usual precautions for mortar or cement mixes with sand. In the environment, reaction with CO2 in the air or in the soil porosity inactivates the causticity, yielding harmless carbonate sales.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CLEANING BEACHES CLEANING OF PERMANENT WAYS CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE DISPERSING FISHING FIXED CONSTRUCTIONS FOG IN GENERAL FORESTRY HUMAN NECESSITIES HUNTING MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF STREET CLEANING TRAPPING |
| title | Weed Control in Joints of Concrete Block and Other Paving Stone |
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