div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: For cement grout or concrete within a permanent casing the maximum allowable design stress can be increased to 40 percent of the specified 28-day unconfined compressive strength src=https:reader030fdocumentsnetreader030viewer20220409115e85e461d5b35b0c0277b2a4html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: For cement grout or concrete within a permanent casing the maximum allowable design stress can be increased to 40 percent of the specified 28-day unconfined compressive strength src=https:reader030fdocumentsnetreader030viewer20220409115e85e461d5b35b0c0277b2a4html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=trans-pagebuttonPage 3button div class=trans-image amp-img class=trans-thumb alt=Page 3: For cement grout or concrete within a permanent casing the maximum allowable design stress can be increased to 40 percent of the specified 28-day unconfined compressive strength src=https:reader030fdocumentsnetreader030viewer20220409115e85e461d5b35b0c0277b2a4html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdiv