清彦 内田

TL;DR: In this article, the authors proposed a porous concrete molding for planting with an alkali ingredient adverse to growing of plants neutralized, having very high coefficient of permeability, and compression strength usable for regular structural member and pavement member.

TL;DR: In this paper, a paving structure for paving an air port constructed in this way can be provided, where a room temperature asphalt mixture including an aggregate, an asphalt emulsion mixed with the aggregate in a state where a volume is increased by bubbling and a hydraulic setting inorganic material is paved.

TL;DR: In this paper, the authors proposed a method to obtain a pavement structure capable of being applied to a heavy traffic road by providing a surface layer and a base layer comprising a permeable polymer concrete, a base comprising permeable concrete and a filter layer comprising water crushed slug.

TL;DR: In this paper, a hydraulic composition is prepared by incorporating 2 to 18 pts.wt.% a hydraulic powder (calcium silicate, portland cement or the like), an average particle size is in the range of about 10 to 40 μm, and the plain specific surface area is >= about 2,500 cm2/g.

TL;DR: In this paper, the authors proposed an extra quick hardening and acid resistant cement material which is a cement-based material having excellent resistance to acids and small water permeability, exhibiting execution aspects nearly equivalent to those of mortar cement, having wettability such that the adhesion to concrete is excellent, and capable of being used as an anti-corrosion material or a repair material.