ГОСТ 22690-88
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<title>Áåòîíû. Îïðåäåëåíèå ïðî÷íîñòè ìåõàíè÷åñêèìè ìåòîäàìè íåðàçðóøàþùåãî êîíòðîëÿ</title>
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<div class=Section1>
<p class=MsoNormal align=center style='text-align:center'><a name=BITSoft></a><img width=114 height=120
src="img\38792.jpg" v:shapes="_x0000_i1025"></p>
<div style='border:none;border-bottom:solid windowtext .75pt;padding:0cm 0cm 1.0pt 0cm'>
<p class=MsoCaption><b>ÃÎÑÓÄÀÐÑÒÂÅÍÍÛÉ ÑÒÀÍÄÀÐÒ ÑÎÞÇÀ ÑÑÐ</b></p>
</div>
<p class=MsoNormal align=center style='margin-top:6.0pt;margin-right:0cm;
margin-bottom:6.0pt;margin-left:0cm;text-align:center'><b style='mso-bidi-font-weight:
normal'><span style='font-size:14.0pt'> </span></b></p>
<p class=MsoNormal align=center style='margin-top:6.0pt;margin-right:0cm;
margin-bottom:6.0pt;margin-left:0cm;text-align:center'><b style='mso-bidi-font-weight:
normal'><span style='font-size:14.0pt'>ÁÅÒÎÍÛ <br>
</span><span style='font-size:12.0pt;
mso-bidi-font-size:10.0pt'>ÎÏÐÅÄÅËÅÍÈÅ ÏÐÎ×ÍÎÑÒÈ ÌÅÕÀÍÈ×ÅÑÊÈÌÈ <br>
ÌÅÒÎÄÀÌÈ ÍÅÐÀÇÐÓØÀÞÙÅÃÎ ÊÎÍÒÐÎËß</span></b></p>
<p class=MsoNormal align=center style='margin-top:6.0pt;margin-right:0cm;
margin-bottom:6.0pt;margin-left:0cm;text-align:center'><b style='mso-bidi-font-weight:
normal'><span style='font-size:12.0pt'>ÃÎÑÒ 22690-88</span></b></p>
<p class=MsoNormal align=center style='margin-top:6.0pt;margin-right:0cm;
margin-bottom:6.0pt;margin-left:0cm;text-align:center'><b style='mso-bidi-font-weight:
normal'><span style='font-size:12.0pt'> </span></b></p>
<p class=MsoNormal align=center style='text-align:center'><b>ÃÎÑÓÄÀÐÑÒÂÅÍÍÛÉ
ÑÒÐÎÈÒÅËÜÍÛÉ ÊÎÌÈÒÅÒ ÑÑÑÐ</b></p>
<p class=MsoNormal align=center style='text-align:center'><b>Ìîñêâà</b></p>
<p class=MsoNormal align=center style='text-align:center'> </p>
<p class=MsoNormal align=center style='text-align:center'> </p>
<p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:12.0pt;letter-spacing:2.0pt'>ÃÎÑÓÄÀÐÑÒÂÅÍÍÛÉ
ÑÒÀÍÄÀÐÒ ÑÎÞÇÀ ÑÑÐ</span></b></p>
<div align=center>
<table border=1 cellspacing=0 cellpadding=0 width="100%" style='width:100.0%;
border-collapse:collapse;border:none;
'>
<tr>
<td width="69%" valign=top style='width:69.52%;border-top:solid windowtext .5pt;
border-left:none;border-bottom:solid windowtext .5pt;border-right:none;
padding:0cm 5.4pt 0cm 5.4pt'>
<p class=MsoNormal align=center style='margin-top:6.0pt;margin-right:0cm;
margin-bottom:6.0pt;margin-left:0cm;text-align:center'><b style='mso-bidi-font-weight:
normal'><span style='font-size:12.0pt'>ÁÅÒÎÍÛ</span></b></p>
<p class=MsoBodyText>Îïðåäåëåíèå ïðî÷íîñòè ìåõàíè÷åñêèìè<span style='font-weight:normal'> <br>
ìåòîäàìè íåðàçðóøàþùåãî êîíòðîëÿ</span></p>
<p class=MsoNormal align=center style='margin-top:6.0pt;margin-right:0cm;
margin-bottom:6.0pt;margin-left:0cm;text-align:center'><span style='font-size:12.0pt'>Concretes.
Determination of strength by mechanical <br>
methods of nondestructive testing</span></p>
</td>
<td width="30%" style='width:30.48%;border-top:solid windowtext .5pt;
border-left:none;border-bottom:solid windowtext .5pt;border-right:none;
padding:0cm 5.4pt 0cm 5.4pt'>
<p class=MsoNormal align=center style='margin-top:6.0pt;margin-right:0cm;
margin-bottom:6.0pt;margin-left:0cm;text-align:center'><b style='mso-bidi-font-weight:
normal'><span style='font-size:14.0pt'>ÃÎÑÒ <br>
22690-88</span></b></p>
</td>
</tr>
</table>
</div>
<p class=MsoNormal align=right style='margin-top:6.0pt;margin-right:0cm;
margin-bottom:6.0pt;margin-left:0cm;text-align:right'><b style='mso-bidi-font-weight:
normal'><span style='font-size:12.0pt'>Äàòà ââåäåíèÿ <u>01.01.91</u></span></b></p>
<p class=MsoBodyTextIndent>Íàñòîÿùèé ñòàíäàðò ðàñïðîñòðàíÿåòñÿ íà òÿæåëûé è
ëåãêèé áåòîíû è óñòàíàâëèâàåò ìåòîäû îïðåäåëåíèÿ ïðî÷íîñòè íà ñæàòèå â
êîíñòðóêöèÿõ ïî óïðóãîìó îòñêîêó, óäàðíîìó èìïóëüñó<span style='font-family:
Symbol;
mso-char-type:symbol'>,</span> ïëàñòè÷åñêîé äåôîðìàöèè<span style='font-family:Symbol'>,</span>îòðûâó<span style='font-family:Symbol'>,</span>
ñêàëûâàíèþ ðåáðà è îòðûâó ñî ñêàëûâàíèåì.</p>
<h1>1. ÎÁÙÈÅ ÏÎËÎÆÅÍÈß</h1>
<p class=MsoNormal style='text-align:justify;text-indent:14.2pt'><span style='font-size:12.0pt'>1.1.<b style='mso-bidi-font-weight:
normal'> </b>Ïðî÷íîñòü áåòîíà îïðåäåëÿþò ïî ïðåäâàðèòåëüíî óñòàíîâëåííûì
ãðàäóèðîâî÷íûì çàâèñèìîñòÿì ìåæäó ïðî÷íîñòüþ áåòîííûõ îáðàçöîâ ïî <a
href="2454.htm" title="ÃÎÑÒ 10180-90">ÃÎÑÒ 10180-90</a> è êîñâåííûì
õàðàêòåðèñòèêàì ïðî÷íîñòè.</span></p>
<p class=MsoNormal style='text-align:justify;text-indent:14.2pt'><span style='font-size:12.0pt'>1.2.<b style='mso-bidi-font-weight:
normal'> </b>Â çàâèñèìîñòè îò ïðèìåíÿåìîãî ìåòîäà êîñâåííûìè õàðàêòåðèñòèêàìè
ïðî÷íîñòè ÿâëÿþòñÿ:</span></p>
<p class=MsoNormal style='text-align:justify;text-indent:14.2pt'><span style='font-size:12.0pt'>çíà÷åíèå îòñêîêà áîéêà îò
ïîâåðõíîñòè áåòîíà (èëè ïðèæàòîãî ê íåé óäàðíèêà);</span></p>
<p class=MsoNormal style='text-align:justify;text-indent:14.2pt'><span style='font-size:12.0pt'>ïàðàìåòð óäàðíîãî èìïóëüñà
(ýíåðãèÿ óäàðà);</span></p>
<p class=MsoNormal style='text-align:justify;text-indent:14.2pt'><span style='font-size:12.0pt'>ðàçìåðû îòïå÷àòêà íà áåòîíå
(äèàìåòð, ãëóáèíà è ò. ï.) èëè ñîîòíîøåíèå äèàìåòðîâ îòïå÷àòêîâ íà áåòîíå è
ñ