Expedient Low-Temperature Concrete Admixtures for the Army
Over 50 chemical combinations were studied for their effect on the strength gain of mortar when it is below freezing. The chemicals studied were limited to those that are readily available most anywhere, but that are not marketed as admixtures for concrete. Four admixtures were developed from these...
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| creator | Korhonen, Charles J |
| description | Over 50 chemical combinations were studied for their effect on the strength gain of mortar when it is below freezing. The chemicals studied were limited to those that are readily available most anywhere, but that are not marketed as admixtures for concrete. Four admixtures were developed from these chemicals that allowed mortar to gain full strength at -10 deg C as rapidly as normal mortar cured at temperatures between 5 and 10 deg C. A host of other chemicals allowed mortar to recover full strength when cooled to the point that cement hydration ceased or that allowed mortar to continually gain modest strength while at low temperature with only minimal loss of ultimate strength. Guidance is provided for expedient field use-for concrete not expected to last more than 5 years. |
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The chemicals studied were limited to those that are readily available most anywhere, but that are not marketed as admixtures for concrete. Four admixtures were developed from these chemicals that allowed mortar to gain full strength at -10 deg C as rapidly as normal mortar cured at temperatures between 5 and 10 deg C. A host of other chemicals allowed mortar to recover full strength when cooled to the point that cement hydration ceased or that allowed mortar to continually gain modest strength while at low temperature with only minimal loss of ultimate strength. Guidance is provided for expedient field use-for concrete not expected to last more than 5 years.</description><language>eng</language><subject>ADMIXTURES ; ARMY EQUIPMENT ; AT42-TO-011 ; CHEMICAL COMPOUNDS ; CONCRETE ; Construction Equipment, Materials & Supplies ; COOLING ; FREEZING ; HYDRATION ; Logistics, Military Facilities and Supplies ; LOW TEMPERATURE ; MORTARS ; PE62784A ; PORTLAND CEMENT</subject><creationdate>1999</creationdate><rights>APPROVED FOR PUBLIC RELEASE</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,776,881,27544,27545</link.rule.ids><linktorsrc>$$Uhttps://apps.dtic.mil/sti/citations/ADA375241$$EView_record_in_DTIC$$FView_record_in_$$GDTIC$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Korhonen, Charles J</creatorcontrib><creatorcontrib>COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH</creatorcontrib><title>Expedient Low-Temperature Concrete Admixtures for the Army</title><description>Over 50 chemical combinations were studied for their effect on the strength gain of mortar when it is below freezing. The chemicals studied were limited to those that are readily available most anywhere, but that are not marketed as admixtures for concrete. Four admixtures were developed from these chemicals that allowed mortar to gain full strength at -10 deg C as rapidly as normal mortar cured at temperatures between 5 and 10 deg C. A host of other chemicals allowed mortar to recover full strength when cooled to the point that cement hydration ceased or that allowed mortar to continually gain modest strength while at low temperature with only minimal loss of ultimate strength. Guidance is provided for expedient field use-for concrete not expected to last more than 5 years.</description><subject>ADMIXTURES</subject><subject>ARMY EQUIPMENT</subject><subject>AT42-TO-011</subject><subject>CHEMICAL COMPOUNDS</subject><subject>CONCRETE</subject><subject>Construction Equipment, Materials & Supplies</subject><subject>COOLING</subject><subject>FREEZING</subject><subject>HYDRATION</subject><subject>Logistics, Military Facilities and Supplies</subject><subject>LOW TEMPERATURE</subject><subject>MORTARS</subject><subject>PE62784A</subject><subject>PORTLAND CEMENT</subject><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>1999</creationdate><recordtype>report</recordtype><sourceid>1RU</sourceid><recordid>eNrjZLByrShITclMzStR8Mkv1w1JzS1ILUosKS1KVXDOz0suSi1JVXBMyc2sAAkVK6TlFymUZACFinIreRhY0xJzilN5oTQ3g4yba4izh25KSWZyfHFJZl5qSbyji6OxuamRiaExAWkAoEMsFg</recordid><startdate>199911</startdate><enddate>199911</enddate><creator>Korhonen, Charles J</creator><scope>1RU</scope><scope>BHM</scope></search><sort><creationdate>199911</creationdate><title>Expedient Low-Temperature Concrete Admixtures for the Army</title><author>Korhonen, Charles J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-dtic_stinet_ADA3752413</frbrgroupid><rsrctype>reports</rsrctype><prefilter>reports</prefilter><language>eng</language><creationdate>1999</creationdate><topic>ADMIXTURES</topic><topic>ARMY EQUIPMENT</topic><topic>AT42-TO-011</topic><topic>CHEMICAL COMPOUNDS</topic><topic>CONCRETE</topic><topic>Construction Equipment, Materials & Supplies</topic><topic>COOLING</topic><topic>FREEZING</topic><topic>HYDRATION</topic><topic>Logistics, Military Facilities and Supplies</topic><topic>LOW TEMPERATURE</topic><topic>MORTARS</topic><topic>PE62784A</topic><topic>PORTLAND CEMENT</topic><toplevel>online_resources</toplevel><creatorcontrib>Korhonen, Charles J</creatorcontrib><creatorcontrib>COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH</creatorcontrib><collection>DTIC Technical Reports</collection><collection>DTIC STINET</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Korhonen, Charles J</au><aucorp>COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH</aucorp><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>Expedient Low-Temperature Concrete Admixtures for the Army</btitle><date>1999-11</date><risdate>1999</risdate><abstract>Over 50 chemical combinations were studied for their effect on the strength gain of mortar when it is below freezing. 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| source | DTIC Technical Reports |
| subjects | ADMIXTURES ARMY EQUIPMENT AT42-TO-011 CHEMICAL COMPOUNDS CONCRETE Construction Equipment, Materials & Supplies COOLING FREEZING HYDRATION Logistics, Military Facilities and Supplies LOW TEMPERATURE MORTARS PE62784A PORTLAND CEMENT |
| title | Expedient Low-Temperature Concrete Admixtures for the Army |
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