Abstract
In agricultural construction, the most frequently used construction material is concrete. In particular swine farm, traditional concrete flooring system in the business is conventional concrete. However, the conventional concrete floor has several key issues on its surface. They are easily to be spalled and cracked, pig scour, rough areas, and low wear resistance of acid from animal feed. This research involves study in the ratio between Portland cement and supplementary materials (fly ash and silica fume) that is the most resistant to abrasion. Concrete samples were cured in water for 28 days, then submersed in lactic acid solution at 30 °C (pH 2-3). After exposure to the acid solution, every 7, 14, 28, and 56 days, the samples will be test for attrition on the face of concrete in accordance with ASTM C944 to simulate the acceleration reaction refer to animal behaviour and corrosion from acid of feed. From experiment, it was found that increasing the volume of fly ash and silica fume can increase concrete resistance to corrosion due to acid derived from feed.
Highlights
The construction of Thai swine farms is generally made of concrete
The use of Pozzolans is help in strengthen and sealing the concrete, and have more benefit in other features when this raw material is added or mixed with other materials. These are the benefit when applying with fly ash (FA) and silica fume (SF) in order to increase density and long-term pozzolanic action
Figure 7. shows all age, focusing at the 28-day compressive strength, 8SF22FA gains the highest compressive strength when compare with 30FA, while Conventional concrete gains developed the lowest compressive strength at all ages
Summary
The construction of Thai swine farms is generally made of concrete. It is crucial that the swine farm floor must be smooth but non-slippery. Concrete is one of the most frequent used as building material It is for general construction and for a specific purpose like the agricultural construction, where the floor is aggressively subjected to chemical erosion and physical force such as cleaning, acid from animal feed and animal behaviours. This document purpose is to enable an assessment of a swine building’s construction and key factor of the concrete surface’s strength in the building and structure is agricultural environment. Concrete material for swine building floor should be high quality material that resistible against the chemical and physical attacks. Leading to the development of ‘special concrete for farm floor’ with a concept of increasing in resistance in erosion due to lactic acid derived from animal feed; corn, wheat, manioc, so forth. The concrete mass is increased the hardiness to be durable from animal behaviour such as scratching that is caused of craggy and coming apart. [4]
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