High-performance rammed earth cube test piece and preparation method thereof

Abstract

The invention discloses a preparation method of a high-performance rammed earth cube test piece. The cube test piece comprises, by weight, 30-60 parts of raw soil, 10-50 parts of sands, 10-50 parts ofstone, 2-10 parts of cement, 2-10 parts of lime, 1-5 parts of a soil stabilizer, 0.1-0.25 part of hemp threads and 1-5 parts of water glass. The preparation method comprises the following steps: 1, weighing and mixing raw materials: weighing the raw materials according to the formula ratio, sequentially putting the raw materials into a stirrer, mixing for 7 min, and controlling the water contentof the obtained mixture to be 8-12%; and 2, ramming the cube test piece. Compared with traditional rammed earth cube test pieces, the rammed earth cube test piece prepared in the invention has the following advantages: the anti-cracking strength and the compressive strength are improved, and the main problems of the traditional rammed earth dwelling are solved to a certain extent.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to rammed earth containing various external admixtures and a preparation method thereof. Background technique [0002] Rammed earth buildings have a relatively long history and are widely distributed around the world. Rammed earth building materials can be obtained locally, easy to construct, low in cost, green and environmentally friendly, warm in winter and cool in summer. In recent years, due to accelerated industrialization and serious environmental degradation, people have gradually begun to pay attention to green and environmentally friendly building materials. The most common building forms in China are concrete and brick-concrete structures. The processing and construction of building materials will cause huge damage to the ecological environment. A large amount of construction waste is difficult to deal with, which makes rammed earth materials come b...

AI Technical Summary

Problems solved by technology

[0003] Traditional rammed earth materials also have many disadvantages, such as low strength and easy cracking.

Traditional rammed earth dwellings mostly exist in the poor rural areas of our country. During the construction of the houses, the soil materials are selected randomly, the moisture content of the soil materials is not paid attention to, the ramming tools are backward, and the rammed earth materials are not dense enough. The quality of these constructions Problems can significantly degrade home security

Furthermore, most of the rammed-earth houses are self-raised and built by the villagers without a complete design process. The safety awareness of the farmers is weak, and there are almost no earthquake-resistant structural measures, and the integrity of the houses is poor.

In the earthquake disasters over the years, the damage of rammed earth buildings is far greater than that of concrete buildings, causing serious loss of life and property