The purpose of this paper is discribe the manufacturing process and the properties of autoclaved lightweight concrete (ALC), such as bulk density, strength, elasticity, shrinkage cracking, heat insulation, fire resistance efficency and sound insulation. It is point out that use of the following characteristics of ALC, fire proof, high heat insulation, high sound insulation and lightweight, is far better than the use as structural material for buildings.

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This paper introduces various concrete products used for public sewerage system in Japan. It also describes about load carrying capacity of Hume pipe mostly used in sewerage and mentions about some problems in design and execution. Furthermore, it refers to an outline of fundamental elements of concrete segment authorized by Japan Sewage Works Association Standard.

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This paper reports the mass concrete work in the construction of LNG inground storage tank in Sodegaura Thermal Power Station of The Tokyo Electric Power Co., Inc.
The LNG inground tank is composed of reinforced concrete body for external forces and stainless-steel membrane for gastightness and liquidtightness.
One of the features of this construction is the bottom slab mass concrete placing work in summer. The bottom slab is 69 m in diameter, 5.5 m in thickness, and 15 000 m3 in volume. To reduce the themal stress by heat of hydration, warm water was stored on the concrete surface for curing.
This paper refers to the method of curing, pre-construction experiments, and the work results.

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This report is a record of design and construction of the so-called PRC (Prestressed Reinforced Concrete) structure with the girders using unbonded tendons that are main member resisting the horizontal load. This describes mainly the following. 1) Outline of design, 2) Prestressed reinforced concrete structure from a construction point of view

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