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West Road, semi-rigid three-Test of Base material


. 33.3 and Analysis of crack resistance with different content on the crack resistance of gravel in the same way, the same can distinguish two different gray ash gravel than the crack resistance of different materials. Temperature changes from the unit accounted for the shrinkage strain ratio of ultimate tensile strain (Table point of view, two different gray ash gravel than the crack resistance of materials with temperature variation of sand content in different situations the same as that with the temperature lower crack resistance decline; in the test temperature range of 10 ~ 0c and a 1o ~ 15c in decreased greatly. Ash than the crack resistance change by the result: 7:33:60 crack resistance under the best mix. This is mainly because of the bending die with the volume ratio relative to the bending strength decreased greatly, so the calculation of the ultimate strain of the larger sand loving,[link widoczny dla zalogowanych], etc. 1: West half cut of the three road test of Base material To (Table 7) the overall strength of the material is actually lower (see Table 5). Mix in the remaining three, with the ratio of 10:30:60,[link widoczny dla zalogowanych], and 8:32:60 in the crack resistance is better, especially 1o: 30:60. Mix both the overall strength of the material obtained under relatively high. 3.4 Comprehensive analysis are plotted in the same coordinate system by the different ratio of lime lime gravel material strength, stiffness and unit temperature change due to temperature shrinkage strain and the ratio of change in ultimate tensile strain (Fig. 2) can be learned: 7 : 33; 60 with gray gravel, although more than two cracking good show,[link widoczny dla zalogowanych], but its strength and stiffness of Table 7 two different gray ash gravel material than the calculation of ultimate tensile strain with units ratio (%) of the ultimate tensile strain ( lime: sand powder battlements gray t Di) (× 10) 13:2760146.710} 30t608} 32:602458 Table 8,[link widoczny dla zalogowanych], two different gray ash gravel than the crack resistance of materials compared with units ratio (%) temperature (℃ ) units within the temperature range of changes in the total shrinkage strain than the ultimate tensile strain of the back (io / ℃) (gray battlements of lime powder sand) 5 ~ o of a 1o ~ l5l3; 27:60 o. 143o. 194o. 249o. 249o312o. 108o. 154o192o. 2050.2568} 3260O125O186O2 out O25603427f33: 600068O. 107Ol3801590l88 value is too low; 10:30:60 and 8:32:60 with the ratio of the two ash gravel materials are compared, 8:32:6 O with the ratio of low-ash gravel strength, stiffness, leading to the ultimate tensile strain of small offset caused by fly ash content and the temperature of shrinkage strain small advantage. So, from the strength, stiffness and crack resistance point of view into account, to meet the ratio 10:30:60 (corresponding to ash ratio of 1:3) is more appropriate. 4 Conclusion (1) the composition of ash ratio of gravel materials,[link widoczny dla zalogowanych], its crack resistance mainly through the ash and sand content than to reflect the change. Cracking good ash gravel material should have a smaller temperature coefficient and a larger contraction of ultimate tensile strain (2) fly ash content increased more than in favor of reducing the temperature contraction coefficient, the larger gravel content l3OOOl1000 Hey Kuo hanging 2. Aldehydes, Chicago summer with Taiwan luxuriant 1.2I recommended lime and fly ash than 1:31 l41 l0 ~ 15CO ~ 5r5 ~ a l0C5 ~ 0C510 ~ 5C Figure 2 two different gray ash gravel than the material strength, stiffness and resistance Comprehensive sets of map cracking (> 5O%) conditions, the gravel content increases the temperature did not show significant effect on contraction coefficient. (3) the crack resistance of lime-based sand and gravel, taking into account the strength, stiffness, suitable gravel mix lime VA - cement ratio is 1:3 and the gravel content of 6O% ~ 7O% as appropriate.
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