Download e-book for iPad: Disposal and recycling of organic and polymeric construction by Y. Ohama

By Y. Ohama

ISBN-10: 0419205500

ISBN-13: 9780419205500

This quantity includes a entire collection of the papers awarded on the RILEM overseas Workshop at the topic held in Tokyo, Japan in 1995. Invited specialists from Japan, united states, Europe and the a ways East reviewed the newest study within the disposal and recycling of development fabrics comparable to plastics, rubber, asphalt, wooden and paper.

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Additional info for Disposal and recycling of organic and polymeric construction materials: proceedings of the International RILEM Workshop, Tokyo, 26-28 March 1995

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An analysis of the concrete samples showed that the mixing procedure had evenly distributed the plastic chips. 2 Compressive Strength The effect of plastic fillers on the axial compressive strength was measured on two different concretes. The control specimens of mix No. 62 MPa) and of mix No. 48 MPa). The use of a high strength concrete was for the purpose of determining if a stronger paste would partially nullify the negative effect of an unbonded filler in the concrete matrix. If true, higher concrete strength would be less affected by the presence of a plastic filler than a lower concrete strength.

The force and deflection were measured to calculate the stress and strain and by using the formula deduced from the elastic theory. 1 State of compaction Influence of mixing of a plastic on the state of compaction in the asphalt mixture varied with sorts of plastics. Fig. 3 shows the relation air void percent of the compacted asphalt mixture with a quantity of each plastic and asphalt. The air void percent of compacted mixture decreased as the softening temperature of plastic mixed is higher. This suggests that careful trial mixing must be conducted to check the quality of the mixture, especially the air void, before construction.

The permeability results of 12 slices are shown in Table 8. It can be seen that every specimen is impermeable. After 6 hours, the permeabilities were the same as at the beginning. Although RPUMRPE-2 contains more isocyanate compound and more expansion than RPUMRPE-1, it still had excellent impermeability which means the pores are “closed,” and the water cannot pass through. 0 inch (12 to 25 mm) in thickness were cast on beams from 16 to 65 inches (406 to 1650 mm) long for each polymer mortar. Three polymers mortars, RPUMRPE, HRPE, and RPE, were tested.

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Disposal and recycling of organic and polymeric construction materials: proceedings of the International RILEM Workshop, Tokyo, 26-28 March 1995 by Y. Ohama


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