Abstract Modified concretes and fiber for rigid pavements have been investigated. Four-factor experiment was conducted. The amount of Portland cement, polypropylene fiber, metakaolin polycarboxylate superplasticizer varied in the experiment. All mixtures had same mobility S2. active mineral additive increases compressive strength concrete its tensile bending. at level 15.20 kg/m 3 is rational. ...

Permeable pavements are used to mitigate urban flooding. However, conventional concrete permeable have low compressive strength and prone clogging, which degrades performance reduces service life. A new type of pavement, high-strength clogging resistant pavement (CRP), has recently been developed that overcomes many limitations pavements. This paper presents a design methodology for CRP takes i...

Passenger and freight traffic on our roads continues to increase in number severity. High axle loads, high tyre pressures greater dynamic loads require load-bearing stable road pavements. Concrete pavements are highly suitable for meeting these demands over long periods of time. Therefore, they well suited the new construction renewal motorways, federal country roads, local bypasses, bus areas,...

INTRODUCTION Historically, aggregate gradation has been controlled by specifications that call out envelopes for individual fractions, typically the coarse aggregate and the fine aggregate. The shortcoming of this approach is that the gradation of the overall system is not addressed. While it is sensible to stockpile coarse and fine fractions separately to prevent segregation, it is the combine...