PERFORMANCE OF LIGHTWEIGHT CONCRETE WITH AGGREGATE MADE OF YELLOW RIVER DEPOSITS

This paper presents the results from experimental evaluation on the applicability of high performance lightweight concrete (HPLC) to civil engineering structures. The HPLC in this paper is produced with artificial lightweight aggregate that has recently been invented using natural deposits of the Yellow River, China. Since the aggregate has very low water absorption, the HPLC is expected to exhibit excellent structural performance such as lower weight, higher durability, and better mechanical properties compared to conventional lightweight aggregate concrete. We have performed a series of tests to evaluate compressive and tensile strengths, durability against chloride ion ingress and abrasion, shear capacities of beams, and pumpability of concrete. It was confirmed that these basic properties of the HPLC are well improved and have high potential for use in structures.

• INTRODUCTION

• AGGREGATES AND CONCRETE MIXES

• STRENGTH OF LIGHTWEIGHT CONCRETE

• DURABILITY

• SHEAR CAPACITY OF BEAM

• CHANGE IN THE QUALITY OF LIGHTWEIGHT CONCRETE

• CONCLUSIONS

• ACKNOWLEDGMENTS

• REFERENCES