Method of reinforcing irregular structures
A technology of irregular and reinforced layers, applied in earth-moving drilling, tunnel lining, application, etc., can solve the problems of low elongation, low adaptability of rock movement, etc.
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[0101] Test Methods
[0102] The tensile strength data reported below were measured at room temperature at the indicated times using Die C (Die C) according to ASTM D412-06ae2.
[0103] The elongation data reported below were measured at room temperature at the indicated times using die C according to ASTM D412-06ae2.
[0104]Tear strength data reported below were measured using Die C according to ASTM D624-00 (2007) at room temperature at the indicated times unless otherwise indicated.
[0105] Hardness data reported below were measured in accordance with ASTM D2240-05.
[0106] The gel tack time data and tack free time data reported below were measured in accordance with ASTM D 7487-08.
[0107] A "rock on rock" test was done to simulate slow loose rock movement and observe failure patterns, now ref figure 2 with image 3 Describe INSTRON based test equipment. Apparatus 100 has a stand 140 configured to support a large water cut unpolished granite block 180 having si...
example 1
[0113] Example 1 : Curable foam composition
[0114] Table 1
[0115]
[0116] This formulation is a demonstration of the types of curable foam compositions that can be used in the composite method of the present invention. Part A of Table 1 FC and part B FC Each was prepared separately using the materials shown according to the procedure used to prepare the urethane-reactive materials. Subsequently, by using the injection device reactor E-XP1 or equivalent, the corresponding part A FC and part B FC Combine in a 1:1 ratio by high-pressure jetting equipment. The heat used to cure the curable foam composition consists of A FC with B FC An exothermic reaction occurs. The reaction produces a density of 8.9 lbs / cu.ft. (143 kg / m 3 ) of self-skinned, closed-cell foam.
example 2-9
[0117] Example 2-9 : Curable strengthening composition
[0118] For each of Examples 2 to 9, the reinforced polyisocyanate component A RC (Table 2A) and fortified polyamine component B RC (Table 2B) were each prepared using the materials shown in Table 2A and Table 2B respectively according to the procedure used in the preparation of the urethane-reactive material. For each example number, the corresponding Component A RC and component B RC Combined by high pressure spray equipment at a typical 1:1 ratio and spray coated onto high density polyethylene, and after coating the resulting film was peeled off and then cut into dogbone shaped strips for subsequent testing. Component A RC with component B RC The combination results in an exothermic reaction to at least partially cure the coating.
[0119] Table 2A
[0120]
[0121] Table 2B
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[0123]
[0124] The resulting reinforcement samples were tested according to standard methods and the results ar...
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